Kev lag luam ntawm kev tsim kho tshiab: txhais, lub tswv yim, nta thiab kev siv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Kev lag luam ntawm kev tsim kho tshiab yog cov txheej txheem ntawm kev nqa cov khoom tshiab lossis cov txheej txheem ntau lawm los ua lag luam, ua kom muaj nyob hauv khw. Lo lus no feem ntau hais txog mus rau hauv kev muag khoom loj. Tab sis nws kuj suav nrog kev hloov pauv ntawm chav kuaj mus rau kev lag luam. Ntau lub thev naus laus zis pib hauv tus neeg tsim khoom tshawb fawb thiab kev cob qhia kev txhim kho thiab tej zaum yuav tsis zoo rau kev lag luam siv thaum lub hnub nyoog hu ua "me nyuam mos" (raws li prototypes).

Qhov "kev tshawb fawb spectrum txhim kho" ntu yuav tsum tau siv sijhawm thiab nyiaj txiag, vim tias cov tshuab tau tsim nrog lub hom phiaj ntawm kev tsim cov khoom lossis cov qauv kev lag luam. Kev tso tawm ntawm cov khoom tshiab yog theem kawg ntawm kev txhim kho. Lub sijhawm no, kev tshaj tawm, kev tshaj tawm kev muag khoom, thiab lwm yam kev lag luam kev lag luam tsim kev lees paub ntawm cov khoom lossis cov qauv. Tshaj tus qauvKev lag luam ntawm kev tsim kho tshiab (nyob rau hauv uas technologies nkag mus rau hauv lub lag luam ntiaj teb no) tej zaum yuav underpinned los ntawm cov neeg siv khoom qauv (nyob rau hauv uas lawv dhau los ua khoom muag, xws li cov computers - thawj zaug lawv raug xa los ntawm lub chaw soj nstuam mus rau lub enterprise, thiab ces tsev los yog nyob rau hauv lub hnab tshos). Cov txheej txheem ntawm kev lag luam kev tsim kho tshiab feem ntau tsis meej pem nrog kev muag khoom, kev lag luam lossis kev txhim kho kev lag luam.

Peb Yam Tseem Ceeb

Kev sib txawv yog qhov tseem ceeb heev uas yuav tsum xav txog ntau lub tswv yim, tau txais ib lossis ob yam khoom lossis kev lag luam uas tuaj yeem ua haujlwm tau ntev. Kev lag luam ntawm kev tsim kho tshiab yog hu ua cov txheej txheem phased, thiab txhua lub sijhawm muaj nws lub hom phiaj tseem ceeb thiab theem. Nws yog ib qho tseem ceeb kom koom nrog cov neeg muaj feem cuam tshuam thaum ntxov, suav nrog cov neeg siv khoom.

Problems

Cov qauv kev lag luam tawm tswv yim tshiab yuav ua rau muaj lus nug txog thaum twg yuav tso nws? Tej yam xws li lub peev xwm cannibalization ntawm kev muag khoom ntawm tus neeg muag khoom lwm yam khoom, ib qho kev xav tau rau kev txhim kho ntxiv, los yog kev lag luam tsis zoo yuav ncua lub community launch.

pib qhov twg?

Ib tus neeg xa khoom muaj peev xwm tuaj yeem pib lag luam hauv ib qho chaw lossis ntau thaj chaw, lossis txawm tias nyob hauv lub tebchaws lossis thoob ntiaj teb kev lag luam. Cov peev txheej uas twb muaj lawm (raws li cov peev nyiaj thiab kev ua haujlwm muaj peev xwm) thiab qib kev tswj hwm kev ntseeg siab tuaj yeem cuam tshuam zoo rau cov phiaj xwm tso tawm. Cov chaw muag khoom me me feem ntau tshwm sim hauv cov nroog txaus nyiam lossis thaj chaw, thaum ntau duacov tuam txhab loj tuaj yeem nkag mus rau hauv lub tebchaws tam sim ntawd. Kev xa tawm thoob ntiaj teb feem ntau tseem yog qhov tseem ceeb ntawm cov koom nrog, txij li lawv yog qhov xav tau loj thiab siv thoob ntiaj teb kev faib khoom. Lwm cov tuam txhab lag luam thoob ntiaj teb tuaj yeem siv lub tswv yim "cov thawj coj hauv tebchaws". Qhia txog cov khoom tshiab hauv ib cheeb tsam ib zaug.

leej twg yuav tsum tau coj los ntawm

Kev tshawb nrhiav kev lag luam thiab kev sim tuaj yeem txheeb xyuas cov neeg siv khoom tseem ceeb. Lub zej zog zoo tshaj plaws yuav tsum yog tsim los ntawm cov neeg tsim kho tshiab, cov tho kev, cov neeg siv fais fab, thiab cov thawj coj kev xav. Qhov no yuav txhawb nqa los ntawm lwm tus neeg yuav khoom ntawm lub sijhawm loj hlob.

Yuav pib li cas?

Cov neeg muag khoom muaj peev xwm yuav tsum txiav txim siab txog txoj kev npaj ua los qhia txog cov khoom lag luam. Lub tswv yim yog tsim los ntawm kev teb cov lus nug saum toj no. Tus neeg muag khoom yuav tsum tsim kom muaj kev sib koom ua lag luam thiab tsim cov peev nyiaj tsim nyog.

Definition

Kev lag luam ntawm kev tsim kho tshiab yog cov txheej txheem uas hloov cov tswv yim, kev tshawb fawb lossis cov qauv rau hauv cov khoom siv tau thiab cov tshuab tsim khoom. Uas khaws cov kev ua haujlwm uas xav tau thaum raug tsim los ua kom yooj yim tsim ntawm tus nqi qis thiab sai sai los yog siv nrog cov cuab yeej zoo tsim. Kev lag luam ntawm kev tsim kho tshiab kuj suav nrog kev tsim cov khoom tsim tau zoo thiab cov tswv yim sib txuas ntawm cov khoom lag luam thaum ntxov.theem. Qhov kev nqis tes no yuav yog ib kauj ruam tsim nyog rau kev ua lag luam ua tiav rau kev tsim kho tshiab los ntawm kev lag luam tshiab, kev tshawb fawb, kev lag luam thev naus laus zis, patents, thiab lwm yam.

Cov laj thawj feem ntau

Ntawm no yog cov laj thawj uas suav nrog cov kev xav tsis tseeb thiab kev coj ua tsis zoo:

1. Koj yuav tsum tau txais qee yam uas ua haujlwm nrawm, tsis hais txog kev tsim khoom thiab nqi. Txhua yam tuaj yeem kho tau tom qab.
2. Ua kom nws khiav nrawm nrog txhua qhov chaw koj tuaj yeem nrhiav tau tam sim no. Los ntawm cov txheej txheem kev lag luam tshiab tshiab koj tau nkag mus.
3. Ua kom tus qauv yuav ua haujlwm tam sim no ntawm txhua tus nqi los ntawm kev qhia nruj nruj thiab siv zog ua haujlwm siab.

Yuav tsim cov khoom lag luam li cas?

Txoj hauv kev zoo tshaj plaws rau kev lag luam kev tsim kho tshiab thiab cov tshuab tsim khoom yuav yog los tsim lawv "ntawm thawj zaug". Rau qhov zoo tshaj plaws manufacturability, nqi, zoo, lub sij hawm, thiab functionality, kev tshawb fawb kev lag luam yuav tsum muaj xws li cov hauv qab no: Summary cov ntsiab lus kom txoj kev tshawb no tsis txhais, txwv, los yog implying khoom architecture, manufacturing tswv yim, los yog ib yam ntawm cov tsim thaum ib tug saib ntawm ib tug. lub cev pov thawj ntawm txoj cai lossis kev sim. Nco ntsoov siv cov lus dav dav xws li "txhais", "ua" thiab lwm yam.

Raws li cov kws lij choj patent hais, cov lus zoo li "txhais" yog qhov muaj zog tshaj plaws. Thiab yog hais tias tus invention muaj ib tug thov pib nrog "txhais tau tias"nws yuav yog daim ntawv thov dav heev, ua rau muaj zog patent. Cov lus zoo ib yam yuav tsum tau sau tseg hauv lub sijhawm tiag tiag hauv kev cob qhia ntawm cov lus processor uas tau npaj rau ntawm qhov screen. Ua tau yog lawm, cov lus piav qhia dav dav yuav tsuas muaj cov ntsiab lus ntawm lub pov haum, thiab koj tuaj yeem ua rau pawg neeg xav tsis thoob nrog qhov tsis zoo thiab tsis zoo. Basic postulates:

1. Cov peev txheej muaj txiaj ntsig thiab sijhawm yuav tsum mob siab rau kev txheeb xyuas cov khoom.
2. Pab neeg txhim kho yuav tsum txheeb xyuas, cais thiab khaws cov "jewels" uas yog lub hauv paus ntawm kev tsim kho tshiab, thiab tom qab ntawd txhim kho cov haujlwm nyob ib puag ncig nws. Ib yam li ntawd, nws them nyiaj kom paub tseeb tias cov khoom yuav tsum tau nthuav tawm "lub suab ntawm cov neeg siv khoom" feem ntau.
3. Nws yog ib qho tseem ceeb los koom nrog kev tsim khoom txij thaum pib, txhawm rau txhim kho tus nqi qis, cov khoom zoo rau kev tsim khoom. Yog tias tag nrho cov tuam txhab yuav tsum tau kawm qhov no, lossis yog xav tau kev hloov pauv kev coj noj coj ua, ces kev cob qhia yuav tsum tau teeb tsa raws li cov hauv paus ntsiab lus los ntawm kev sib tham. Rau cov khoom lossis cov kev pabcuam uas yuav tsum tau ua raws li qhov xav tau lossis loj-customized, cov hauv paus ntsiab lus ntawm "Tsim kom xaj thiab kev hloov kho dav dav" raug coj los siv. Kev tswj hwm qhov kawg ntawm kev lag luam ntawm kev tsim kho tshiab thiab lub tswv yim tsim kev lag luam rau cov nqi qis ntawm kev xav tau kev tsim khoom yam tsis muaj kev kwv yees lossis cov khoom muag."
4. Cov thawj coj yuav tsum nkag siab thiab txhawb nqa cov ntsiab cai no los ntawm kev nyeem phau ntawv thiab mus koom kev cob qhia thiab cov chav kawm tsim cov khoom lag luam rau cov thawj coj thiab cov thawj coj.
5. Kev ntsuas tus nqi tag nrho. Qhov tseem ceeb tshaj tus nqi, lubzoo dua los ntsuas nws. Rau cov hom phiaj ntawm tus nqi siab, nws yog qhov tsim nyog los ntsuas tag nrho cov nqi uas cuam tshuam rau kev muag khoom. Kom txog thaum lub tuam txhab kev ntsuas ntawm tag nrho cov nyob rau hauv qhov chaw, pab neeg txhim kho yuav tsum tau txiav txim siab nqi raws li kev soj ntsuam dav dav los yog txiav txim siab tseem ceeb manually. Txij li feem ntau ntawm cov nyiaj khaws cia yuav los ntawm cov nyiaj siv ua haujlwm, koj yuav tsum ua kom paub tseeb tias cov khoom tshiab tsis raug hnyav los ntawm tus nqi nruab nrab.

theem kev lag luam ntawm kev tsim kho tshiab

Ib lub tswv yim ntawm prototyping, mock-ups lossis siv kev tshawb fawb hauv ib daim ntawv yuav tsum pib nrog kev txheeb xyuas thiab khaws cia ntawm "lub pov haum" - ib qho cuab yeej uas yog lub hauv paus ntsiab lus lossis qhov tseem ceeb ntawm qhov tau raug pov thawj. Yog tias tsis muaj kev hloov pauv ntawm kev tsim kho tshiab kev lag luam, txhua yam uas cuam tshuam nrog cov thev naus laus zis thev naus laus zis thiab kev txhawb nqa yuav raug tsim kho lossis rov tsim dua tshiab los muab cov nqi zoo dua, zoo thiab sijhawm rau kev ua lag luam. Hauv kev ua li ntawd, nws yuav raug muab tso rau hauv cov khoom lag luam zoo tshaj plaws thiab cov tswv yim tsim khoom.

Kev tshawb fawb yuav zoo ib yam, tab sis cov khoom siv, software, cov ntaub ntawv, kev tsim kho tshiab kev lag luam kev tswj hwm yuav raug coj mus muag kom ua tau zoo dua.

Ib txoj hauv kev kom paub qhov no yog qhov khoom lossis kev pabcuam "tsis paub qhov txawv". Nov yog qee qhov piv txwv ntawm kev lag luam ntawm kev tsim kho tshiab: cov rays ntawm lub teeb yeej ib txwm zoo ib yam. Kev khiav ntawm hluav taws xob, kua, hlwb, suab - tag nrho cov ntsiab lus no tsis paubsib txawv.

Qhov kev tshuaj ntsuam no sai sai qhia qhov tsis yog lub pov haum, suav nrog cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, uas tuaj yeem tau sai sai ntawm tus nqi qis thiab zoo dua. Piv txwv li, yog tias cov khoom siv hluav taws xob yog 20 "dav, nws yuav tsis haum rau tus qauv 19" khib.

Yog tias cov txheej txheem ntxov ua kom ntseeg tau tias cov khoom siv hluav taws xob muaj peev xwm ua tau los ntawm cov txee sab nraud, ces lawv tsim tau zoo ntawm tus nqi qis thiab muaj txiaj ntsig zoo dua, tawm hauv cov neeg siv khoom kom tsom mus rau qhov zoo. Yog tias tsis yog, kev cai schemas yuav tsum tau tsim, uas yog cov peev txheej siv zog thiab cuam tshuam rau lwm qhov ntawm qhov project.

Piv txwv li, yog tias cov neeg siv hluav taws xob tau txiav txim siab xaiv qhov hluav taws xob uas txhua tus neeg xav tau, ces cov khoom siv hluav taws xob tsis yog tus qauv yuav tsum tsis txhob xaiv qhov pov thawj thiab suav cov voltages uas twb muaj lawm. Txoj hauv kev no yuav tso cai rau pab pawg tsim qauv tsom mus rau tus qauv nws tus kheej, tsis yog nkim sijhawm thiab cov peev txheej ntawm tus qauv.

Cov hom ntawv thiab qhov loj ntawm cov khoom lossis cov txheej txheem tsim khoom yuav tsum tsis txhob ua raws li qhov kev txiav txim siab tso tawm, muaj peev xwm sib haum rau qee tus nqi. Hloov chaw, cov khoom lag luam yuav tsum tau ua kom zoo kom haum rau tus nqi zoo tshaj plaws / kev ua tau zoo rau qhov system. Qhov no yuav tso cai rau koj mus yuav cov khoom tseem ceeb uas pheej yig dua thiab cov khoom sib dhos.

Kev ua tau zoo ntawm kev tsim kho tshiab kev lag luam

Yog tsis muaj qhov kev txiav txim no, feem ntau muaj kev ntxias kom ua xwbtshawb fawb tias "ua haujlwm" thiab tom qab ntawd "npaj" nws thiab muab tso rau hauv ntau lawm. Thiab qhov no yuav zoo li "kev vam meej thaum ntxov" thiab tej zaum yuav thov rau cov thawj coj thiab cov tub ua lag luam ib ntus, lossis ua tiav cov sijhawm kawg uas yuav ua rau muaj kev cuam tshuam. Txawm li cas los xij, qhov no yuav ua rau ntau qhov tsis muaj zog. Dab tsi? Xav paub ntxiv.

Lub sijhawm ntawm kev ua lag luam

Ib qhov tsis muaj zog tshaj plaws ntawm kev tshawb fawb tsis yog lag luam tuaj yeem yog cov khoom lag luam lossis cov txheej txheem ntawm kev lag luam kev tsim kho tshiab yuav tsis npaj los tsim kom muaj ntau txaus raws li qhov raug cai. Thiab qhov no yuav ua rau ncua sij hawm uas ntau cov peev txheej yuav raug pov tseg tawm tsam hluav taws thiab ua kom tiav cov kev hloov pauv. Qhov no yog lus ceeb toom rau cov kws tshawb fawb thiab cov thawj coj uas tsuas yog txaus siab rau kev ua haujlwm uas nws tus kheej tuaj yeem cuam tshuam los ntawm kev tsim khoom tsis zoo.

Lub sijhawm tiag tiag rau kev lag luam yuav ncua sijhawm. Los yog cov khoom lag luam yuav muaj kev vam meej tuaj yeem cuam tshuam yog tias cov peev nyiaj tshiab tsis tau ua lag luam kom txog thaum txhua qhov kev sim tau ua tiav. Lub tuam txhab tom qab ntawd ntsib teeb meem ntawm ob qho kev tsis txaus siab: sim pib tsim khoom yam tsis muaj kev lag luam txaus, lossis ncua sij hawm tso tawm ntawm cov khoom. Thiab tom qab ntawd koj yuav tsum rov qhia cov khoom lag luam thiab tej zaum rov tsim nyog cov txheej txheem lossis txawm hloov kho cov kev sim tshuaj.

Tus nqi

Raws li tau hais los saum toj no, tus nqi ntawm cov khoom yog txiav txim siab los ntawm lub tswvyim lossis kev tsim qauv. Tab sis qhov muaj peev xwm ua tiav qhov tsawg kawg nkaus yuav tshwm simtus nqi tsis nco qab thaum cov khoom lag luam yog raws li kev tshawb fawb qauv lossis, qhov phem dua, kev thuam. Tsis tas li ntawd, ib zaug cov khoom tsim los ntawm txoj kev no, cov nqi tsis yooj yim txo, tab sis sim nrog kev hloov pauv pov tseg cov peev txheej muaj txiaj ntsig yam tsis tau txo qis thiab, dua, cuam tshuam cov khoom lag luam thiab cov txheej txheem kev ncaj ncees.

Cov neeg tshawb nrhiav tau ploj mus ntawm lub sijhawm loj - khoom seem. Feem ntau, cov kws tshawb fawb tsuas yog tsim kho tshiab rau "kev ua kom zoo" ua haujlwm thiab tom qab ntawd haum rau hauv "architecture" uas tshem tawm cov qauv khoom seem thiab feem ntau xav tau cov khoom txawv txawv, qee zaum nrog cov nqi thiab muaj teeb meem (uas ua rau qeeb lub sijhawm ua lag luam). Nyob rau hauv sib piv, qhov chaw ntawm innovation kev lag luam yuav tsum pib nrog ib tug ua tib zoo tshawb nrhiav thiab xaiv cov khoom tiav thiab subsystems. Thiab tom qab ntawd cov khoom yuav raug tsim los ntawm cov ntsiab lus no. Qhov no yog qhov tsis txaus ntseeg rau cov kws tshawb fawb tshawb fawb. Txawm li cas los xij, lub tswv yim tiav tiav yog lub hauv paus tseem ceeb ntawm kev lag luam tsom mus rau cov hniav nyiaj hniav kub.

Quality

Kev tshawb nrhiav uas tsis yog nyiaj txiag tuaj yeem muaj teeb meem kev lag luam kev tsim kho tshiab nrog kev ntseeg siab. Vim tias kev tshawb fawb uas ua haujlwm tau zoo yog feem ntau ua los ntawm cov kws tshaj lij kev cob qhia, cov kws tshawb fawb thiab cov kws tshaj lij uas paub yuav ua li cas ua haujlwm (txawm tias muaj qhov tsis zoo) nrog qhov ntev. Kev ua piv txwv yog tej zaum tsis suav nrog.

Cov laj thawj feem ntau yog cov kev lag luam yuam kev hauv qab no, uas yog raws li kev soj ntsuam lossis xovxwm hais.

Cov qauv tuaj yeem yooj yim "downgraded" yav tom ntej

Raws li tau sau tseg saum toj no, tus nqi yog qhov nyuaj heev los hloov thaum tsim khoom. Vim tias 80% ntawm tag nrho cov nqi ntawm lub neej yog rau kev txhim kho thiab tsim. Thiab ntau npaum li cas tau ua tiav qhov kev txo nqi ntawm cov txheej txheem yuav nyuaj. Tsis tas li ntawd, kev hloov pauv yuav raug nqi nyiaj uas tsis tuaj yeem xa rov qab thaum lub neej ntawm cov khoom. Thiab kev hloov pauv tseem yuav raug nqi sijhawm, tshwj xeeb tshaj yog tias yuav tsum tau xaj ua ntej, uas tuaj yeem ncua sijhawm nkag mus rau hauv kev lag luam, qee zaum hnyav. Tsis tas li ntawd, kev hloov pauv tuaj yeem ua rau muaj teeb meem ntau dua, yog li koj yuav tsum tau hloov kho kom zoo dua qub, yog li siv sijhawm ntxiv, sijhawm sijhawm thiab nyiaj txiag ntawm cov khoom tom ntej. Uas, nyob rau hauv lem, yuav cuam tshuam functionality, zoo thiab kev cia siab rau. Thiab qhov tshwm sim tsis zoo ntawm kev txo nqi yog tias kev mob siab rau cov peev txheej tsim nyog rau kev sim tsim tom qab ntawm DFM retroactive cuam tshuam los ntawm lwm yam kev siv zog ntau dua los tsim cov khoom siv qis los ntawm kev tsim, kev txhim kho zoo, thiab kev tsim khoom.

Launch Experimental Product

Raws li txoj cai dav dav, thaum tus qauv tsim tawm thiab khiav, nws yuav tsum tau sib sau ua ke thiab muab tso rau hauv kev tsim khoom. Unrefined khoom uas tsis tsim los rau processability yuav inevitably muaj teeb meem nrogpib pib, kev ruaj ntseg zoo, ua haujlwm zoo ib yam. Thiab yog li qhov tseeb ntau lawm yuav raug nqi ntau dua li lub hom phiaj. Lwm qhov sib txawv ntawm qhov teeb meem tib yam yog thaum tswj hwm lossis cov tub ua lag luam hais rau "cov pov thawj thev naus laus zis" thiab tom qab ntawd tsis txhob tso cai hloov pauv rau tus qauv buggy. Uas ces nkag mus ntau lawm yam tsis muaj kev lag luam.

Next error

Kev lag luam ntawm kev tsim kho tshiab hauv Russia tuaj yeem hla dhau los ntawm kev tswj hwm kev pheej hmoo. Ib tug yuav xav tias qhov kev tsim tsis yog lag luam yuav tsis muaj nqis los ntawm kev ua tiav kev ua tiav uas tsuas yog ua pov thawj sib txawv ntawm kev ua haujlwm. Txawm li cas los xij zoo tau txais cov khoom no yuav yog, nws yuav tsis yog thev naus laus zis txaus kom ua tiav cov khoom ruaj khov sai sai.

Txhua lub lag luam hluas xav tau yog kom loj hlob

Qee tus hais tias lawv tab tom ua haujlwm "tseem siv thev naus laus zis, yog li cov nqi tseem siab." Qhov no txhais tau hais tias cov nqi yuav poob qis thaum lawv paub tab. Qhov no yuam kev yuav luag ib txwm tshwm sim nrog cov nram qab no heev postulate. Xav txog nws hauv kab lus tom ntej.

Mass ntau lawm ib leeg yuav txo tus nqi

Lub taub hau ntawm lub tuam txhab yuav xav tias cov nyiaj tau los zaum kawg yuav nyob ntawm qhov kev txiav txim loj heev. Ntawd yog, tus neeg siv khoom loj yog xav tau kom ua tiav kev lag luam ntawm nplai. Qhov tseeb, ntau tus neeg ntseeg hais tias kev lag luam dab neeg yog tib txoj hauv kev los ua lag luam kev tsim kho tshiab. Tus nqi txo yog kom nce ntim. Qhov no tuaj yeem siv rau cov khoom lag luam ntawm cov khoom lag luam tseem ceeb uas muaj qhov sib txawv me me lossis tsawg tsawg hauv kev lag luam lossis hauv kev tsim. Txawm li cas los xij, kev nqis peev loj loj yuav tsum tau tsim kom muaj peev xwm zoo li no. Yog tias lub sijhawm no ntau dua li kev txiav txim ruaj khov, ces cov lag luam khiav txoj kev pheej hmoo tias kev lag luam ntawm cov nplai yuav ua rau tus nqi qis txaus los tsim qhov tsim nyog xav tau los ua cov lag luam zoo li no. Txawm li cas los xij, yog tias cov khoom lag luam tsis tau ua lag luam, tom qab ntawd lub Hoobkas muag khoom yuav sim ua kom loj-tsim qauv lossis cov khoom nyoos, cov kev pabcuam - thiab yuav ntsib ntau yam teeb meem zoo li cov lus hais saum toj no.

Thiab txij li nws nyuaj heev los ua cov khoom lag luam lossis cov kev pabcuam kim heev, qhov txo tus nqi tiag tiag yuav ua rau rov qab tsawg heev ntawm cov nyiaj siv los tsim lub Hoobkas tsim khoom loj. Qhov phem tshaj, kev lag luam tuaj yeem teeb meem yog tias qhov kev cia siab ntawm kev txuag nyiaj tsis ua tiav. Thaum kawg, cov tuam txhab tsim khoom loj heev yog qhov hloov tsis tau uas nws yuav nyuaj rau rov kho lawv kom ua tau cov khoom muaj txiaj ntsig ntau dua.