Cov Cib Uas Tig Los Ntawm, Npaj Txhij Rau Kev Xa Khoom ~

Kev Taw Qhia Yooj Yim
Cov cib siv rau kev tsim kho phab ntsa thiab ntsej muag, suav nrog cov cib plaub fab thiab cov cib zoo sib xws, nrog ntau yam teebmeem ntsej muag. Cov cib ua vaj tse yuav tsum muaj kev rwb thaiv cua sov zoo, rwb thaiv cua sov, rwb thaiv suab, tiv thaiv dej, tiv taus te, tsis muaj xim ploj, ruaj khov, tiv thaiv ib puag ncig thiab tsis muaj radioactivity. Cov khoom feem ntau yog tsim los ntawm cov qauv porous.

Cov yam ntxwv ntawm cov khoom
Cov thaiv rwb thaiv tsev loj uas muaj kev rwb thaiv tsev, kev kho kom zoo nkauj thiab kev thauj khoom siv tau siv rau kev tsim kho phab ntsa vaj tse. Cov yam ntxwv ntawm cov khoom no yog qhov zoo li qub, zoo rwb thaiv tsev, siv tau ua phab ntsa thauj khoom, thiab kev tsim kho sai.

Cov ntawv thov
Cov cib ua vaj siv rau hauv kev tsim vaj tsev suav nrog cov vuas hauv pem teb, cov cib me me hauv vaj thiab lwm yam khoom. Cov cib ua vaj tsev yuav tsum tau tsim kom zoo. Kev siv ib lub cib tsuas yog ua tiav qhov kev tsim ntawm ib daim me me, thiab kev tsim cov toj roob hauv pes xav tau kev sib xyaw ua ke ntawm ntau daim me me.