Cov kua dej tswj tau
Raws li txhua xyoo, nws yog ib qho tsim nyog los xyuas seb lub tshuab cua txias, lossis nws cov ntsiab lus, yog npaj rau qhov tuaj txog ntawm Frost.
Ua ntej, xyuas kom meej tias cov kua hauv qhov txias txias tseem siv tau. Nws txhais nws 
lub tuam txhab tsim tsheb, thiab cov ntaub ntawv tseem ceeb tuaj yeem pom hauv phau ntawv. Qee cov kua dej yuav tsum tau hloov pauv txhua ob peb xyoos lossis tom qab qee qhov mais, thaum lwm tus tsis ua. Qhov no tsis tau txhais hais tias cov kua uas tseem tsis tau tas sij hawm yuav tsum tsis muaj kev txaus siab. Peb xav tau tam sim no, ua ntej qhov kub tsis zoo tshwm sim.
Hauv kev xyaum, nws tag nrho los los tswj cov kua dej hauv qhov system thiab ntsuas nws qhov chaw khov. Thaum thawj kauj ruam nthuav tawm tsis muaj teeb meem, qhov thib ob yuav tsum tau siv cov cuab yeej tsim nyog. Hmoov zoo, xws li lub coolant tester tsis yog ib qho khoom kim heev thiab koj tuaj yeem yuav ib qho rau ib lub kaum os zlotys. Nyob rau lub sijhawm ntawm qhov kev sim no, nws tseem tsim nyog tau txais kev saib xyuas ntawm cov kua dej. Yog tias qhov chaw khov ntawm cov kua tsis qis dua -35 degrees Celsius, cov kua yog pob tshab, tsis muaj impurities pom hauv nws - koj tuaj yeem paub tseeb tias nws yuav tiv taus lub caij ntuj no. Yog tias tsis yog, cov kua yuav tsum tau hloov thiab nyiam dua nrog cov thawj, txawm hais tias nws tau tso cai siv lub tshuab ua kom txias sib txawv thaum hloov cov kua, tab sis tsim nyog rau hom cua txias no. Ntawm qhov tod tes, tso cov kua dej uas muaj qhov siab khov thiab ntxiv rau lwm qhov kom tau txais cov tshuaj zoo tuaj yeem ua rau muaj kev phom sij ntau dua li qhov zoo. Cov kua dej sib txawv tuaj yeem cuam tshuam tsis zoo rau ib leeg, uas tuaj yeem ua rau kev ua haujlwm sai sai lossis tsim cov khoom tsis tsim nyog. Zoo dua tsis txhob sim.
