Hauv ntau yam ntawm lub neej, cov khoom lag luam xws li hluav taws - tsis txhob siv cov ntsaws ruaj ruaj, vim tias lawv tuaj yeem pab tus kheej zoo thaum lub sijhawm siv. Tab sis vim lub sijhawm kev txwv, cov teeb meem yuav maj mam kawg, uas tsis tau ua. Yog li ntawd, ua tib zoo mloog rau kev laus ntawm cov hluav taws kub hnyiab. Qee tus neeg yuav tsis nkag siab yog vim li cas qhov no tsim nyog. Cia peb tham txog qhov no hauv qab no.
Muaj cov roj hmab sib khi txaij ib ncig ntawm lub tsheb lub qhov rooj kom tiv thaiv cua thiab nag los ntawm kev nkag mus rau lub tsev. Txawm li cas los xij, ib zaug cov saling sawb hnub nyoog thiab raug puas, nws yuav ua rau dej xau hauv lub tsheb thauj khoom thiab nce siab cua nrov thaum tsav tsheb. Yog li ntawd, txoj hlua khi khi yog cov tseem ceeb uas yuav tsum tau tshuaj xyuas thiab tswj xyuas tsis tu ncua. Vim yog qhov yooj yim sau ntawm cov xuab zeb thiab cov hmoov av ntawm qhov khoob ntawm cov sealing sawb, nws raug nquahu kom ntxuav cov xuab zeb thiab hmoov av tsis tu ncua nrog txhuam. Tom qab, thov ib txheej ntawm high permeability tiv thaiv tus neeg sawv cev los tiv thaiv kev sib khi. Yog hais tias cov sawb sawb yog ntau phem lossis muaj hnub nyoog, nws yog qhov zoo dua los hloov nws nrog ib qho tshiab kom txuag sijhawm. Los ntawm cov tsos, kev sib khi khi zoo li raug sib khi ua ke rau lub tsheb lub cev, tab sis qhov tseeb, nws tsis yog. Nws tsis yog qhov nyuaj los hloov cov salding sawb. Thaum kho cov sealing sawb lossis thov cov neeg tiv thaiv tiv thaiv ntawm cov npoo ntawm cov sealing sawb, uas yooj yim heev rau kev ua haujlwm nrog.
Yog li thaum peb siv cov khoom lag luam no, peb yuav tsum ua raws li peb yuav tsum tau ua tau zoo, kom nws yuav tsis muaj kev cuam tshuam thaum siv thaum siv. Yog li ntawd, rau kev nyab xeeb, peb yuav tsum them sai sai rau cov teeb meem no thiab kev kuaj mob raws sijhawm.
