Granite, ib hom pob zeb ntuj, tau siv dav hauv kev tsim cov khoom siv semiconductor vim nws qhov ruaj khov zoo, siab hardness, thiab qis thermal expansion coefficient.Txawm li cas los xij, kom ntseeg tau qhov tseeb thiab ruaj khov ntawm granite qhov chaw, ntau yam yuav tsum tau b ...
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