Lub thawv xim yog cov duab peb sab siv los ntim cov khoom. Ntau yam ntawm cov khoom lag luam uas peb tuaj yeem pom txhua qhov chaw tau ntim rau hauv cov thawv xim, thiab lub thawv ntim xim zoo nkauj tuaj yeem txhim kho qhov kev sib tw thiab cov nqi ntxiv ntawm cov khoom. Yuav ua li cas txhawm rau txhim kho qhov pom ntawm lub thawv xim kom lub thawv xim zoo li qib siab, peb tuaj yeem ua rau fuss txog lub thawv xim luam ntawv.
Yuav ua li cas txhawm rau txhim kho qhov zoo ntawm lub thawv xim thaum cov ntaub ntawv rau xim lub thawv luam ntawv tsis txawv ntau? Kev tsim qauv tseem ceeb heev. Hauv kev tsim lub thawv xim, peb yuav tsum tau khawb tawm cov ntaub ntawv los ntawm ntau yam xws li cov khoom ntim khoom nws tus kheej thiab nws cov keeb kwm kev coj noj coj ua, thiab tom qab ntawd muab cov tshuab luam ntawv zoo tshaj plaws los tsim cov khoom ntim uas zoo ib yam nrog cov khoom nws tus kheej. Thiab khoom kim heev.
Nyob rau tib lub sijhawm, qhov peb tuaj yeem ua haujlwm hnyav rau hauv kev tsim yog cov qauv tsim ntawm lub thawv xim. Cov duab thawv xws li squares, duab plaub, lub tog raj kheej, thiab cov duab tsis zoo tam sim no tuaj yeem pom nyob txhua qhov chaw. Ib lub thawv xim tshiab kuj ua lub luag haujlwm tseem ceeb hauv cov khoom sib tw. Raws li cov duab thiab kev xav ntawm cov khoom, nws excavates thiab tsim lub thawv zoo haum rau cov khoom los ntawm cov yam ntxwv ntawm kev txav, ntim, thiab qhov tob.
Nws yog ib qho tseem ceeb heev uas yuav tau xaiv cov xim muaj zog lub thawv ntawv luam ntawv. Txawm hais tias nws yog kev luam ntawv ntawm cov thawv xim lossis cov duab ntawm cov thawv xim, yog tias koj xav kom muaj kev cuam tshuam tag nrho nws cov tswv yim tsim, lub chaw tsim khoom xim xim muaj zog tuaj yeem ua tau raws li qhov xav tau. Tshwj xeeb tshaj yog hais txog cov duab ntawm lub thawv xim, muaj ntau thiab ntau cov duab tshiab tam sim no, ua raws li kev tsim kho tshiab, thiab tus nqi kim no tsuas yog ua tiav los ntawm cov tuam txhab loj, yog li tom qab tsim lub thawv xim zoo nkauj tiav, xaiv ib qho zoo xim thawv luam ntawv manufacturers yuav paub nws cov nyhuv.