Hauv kev niaj hnub no, cov roj sib txuas ua ke ua kom muaj zog tau siv dav hauv txhua yam. Tab sis nws cov yam ntxwv tawg thiab tawg tau tsis muaj kev puas tsuaj loj, yog li peb yuav tsum them cov roj me me los tiv thaiv cov roj sib txuas los ntawm kev tshaj tus qauv.
Cov cuab yeej tawg kom tiv thaiv kom tsis txhob muaj roj tawg yog cov teeb pom kev pa taws thiab pom kev zoo tshaj plaws rau cov neeg siv kev nyab xeeb, yog li kom tsis txhob muaj kev nyab xeeb rau kev nyab xeeb. Lub tswb ceeb toom ntawm lub dav dav roj tau faib ua ob theem.
Cov roj ua kom ruaj khov hluav taws xob saib xyuas yog feem ntau nruab nrog ob txoj kev txwv lub tswb: "10 feem pua Lel" yog Lel "yog qib ob yog qib thib ob taw qhia tswb. Portable roj ntes feem ntau muaj qib qis dua taw tes "25 feem pua LEL" thiab ib theem tswb sab sauv "50 feem pua lel". Hu tau. Qhov qis qis tshaj Lel thiab cov tawg tawg txwv Lel yog qhov ntsuas tau tseem ceeb ntawm cov roj txheem hluav taws xob txuas ntxiv.
Cov hauv qab no yog qhov piv txwv yooj yim los tshawb xyuas lub tswb taw qhia kev teeb tsa thiab cov kev txwv sab saud thiab qis dua ntawm qhov tawg:
Piv txwv li, qis qis tawg ntawm methane yog "5 feem pua" lel "lub suab nrov sib npaug tau sib npaug nrog rau ib puas, qhov no yog qhov sib npaug piv.
Thaum tus nqi nce mus txog "25 feem pua Lel" Tswb Cov Ntsiab Lus, cov ntsiab lus methane yog sib npaug rau "1.25 feem pua" ntim piv rau lub sijhawm no.
Yog li ntawd, cov neeg siv tsis tas txhawj txog cov nplaim hluav taws xob nrawm nrawm yuav txaus ntshai, nws yog qhov kev ncua deb ntawm qhov kev tawg. Siv kev ntsuas tsim nyog tam sim ntawd, xws li qhib lub tso ntxuam lossis txiav tawm qee cov li qub lossis qhib cov kab tsuag, thiab qhov phom sij ntawm qhov tawg yuav tsis tshwm sim.
Tag nrho cov hauv txhua qhov, vim li cas cov ntsuas roj ntes tau teeb tsa lub tswb ntau dhau los yog daws tau qhov kev phom sij qis dua lossis daws tau qhov kev ceeb toom txaus kom muaj lub tswb, yog li ua si lub luag haujlwm ceeb toom.