Cov txim taws txim yog lub hauv paus tseem ceeb rau lub cav system. Lawv ua lub luag haujlwm tseem ceeb hauv nws txoj haujlwm. Txij lub sij hawm, cov tswv tsheb tau ntsib cov teeb meem ntawm kev hla dhau ntawm tswm ciab. Yuav kom daws tau qhov teeb meem, koj yuav tsum tau kuaj lawv.
Ua ntej txhua yam, qhov ua tau zoo pib lub cav yog nyob ntawm tswm ciab. Tsis tas li, lawv cov xwm txheej cuam tshuam qhov kev ruaj ntseg ntawm lub tsheb ntawm kaw. Yog tias lub txim hluav taws xob tsis zoo, lwm cov ntsiab lus ntawm cov roj cav tiv thaiv kuj tuaj yeem ua tsis tiav. Nws kuj yog tsim nyog sau cia tias cov hloov kho catalytic ntawm cov pa roj hluav taws xob tuaj yeem ua kom tawg. Nws tau them tus nqi. Cov kabmob tsis zoo yuav tsum "xam" thiab hloov sai li sai tau. Nws raug nquahu kom siv cov tswm ciab uas pom zoo los ntawm cov kws tsim khoom. Yog tias koj tsis muaj sij hawm los yuav cov lus piv txwv, tom qab ntawd koj yuav tsum ua raws li ob qho kev cai thaum xaiv. Cov tswm ciab tshiab yuav tsum nyob sib ze rau cov qauv. Lawv kuj yuav tsum muaj cov cua sov zoo sib xws. Cov cwj pwm no yog qhov tseem ceeb. Lub tshav kub tus naj npawb cim txog qib ntawm thermal conductivity ntawm lub txim hluav taws xob. Nws tsis tshua pom zoo rau nruab cov tswm ciab ntawm lub tsheb uas muaj qhov sib tshooj luv. Qhov tseeb yog tias lawv nrawm los tawm nrog cov pa roj carbon monoxide thiab tsis siv tsis tau. Xaj lus tias thaum lub sijhawm ua haujlwm, qhov sib txawv nruab nrab ntawm cov electrodes yuav nce 0.015 hli rau txhua 1000 km ntawm kev khiav. Vim li ntawd nws yog qhov zoo tshaj rau kev saib xyuas txhua 5000 km. Feem ntau cov neeg tsim khoom pom zoo hloov lub txim hluav taws xob txhua 30,000 km. Thaum muas, nco ntsoov xyuas lawv hauv lub khw. Qee cov tuam txhab muab kev lees paub rau cov khoom no. Ntau lub Japanese tsheb tau siv nrog tswm ciab uas muaj cov qauv qub. Piv txwv, cov qauv siv feem ntau siv uas muaj peb sab electrodes, lossis tsis muaj nyob rau txhua qhov. Nco ntsoov tias lub tshuab hluav taws xob 3-electrode kuj muaj qhov tsis zoo. Qhov tseeb tsuas yog tsim muaj ib lub txim tsim, uas tuaj yeem tsoo los ntawm qhov sib txawv uas muaj qhov tsis tshua muaj siab.
