Nyob rau hauv ib puag ncig ntuj, muaj ntau yam kev txhawb siab rau cov khoom siv corrosion, xws li huab cua, qhov kub thiab txias, av noo, salinity, hluav taws xob, thiab lwm yam. Nyob rau hauv ib puag ncig sib txawv, cov kev txhawb siab no yuav muaj ntau yam lossis txawm tias tag nrho cov entangled ua ke, thiab cov khoom siv yuav kav ntev. hit nyob rau hauv tag nrho-roun ...
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