久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

阿卡英語 / 查找：“shales” [共找到4條結(jié)果]

  • shales的音標？

    shales的音標：...

  • shales是什么意思？

    n.頁巖( shale的名詞復數(shù) )...

  • shales例句

    Sandstones are, as a rule , interbedded with shales.砂巖通常都與頁巖互層.Oil - yielding organic matter is contained in the shales.在這些頁巖里有產(chǎn)油的有機物質(zhì).Alternating sandstones and shales are regarded as important.蝕變的砂巖和頁巖是很重要的....

  • shales造句

    Oil - yielding organic matter is contained in the shales.在這些頁巖里有產(chǎn)油的有機物質(zhì).Thus clays and shales tend to be impermeable.因此粘土和頁巖就往往不透水.Sandstones are, as a rule , interbedded with shales.砂巖通常都與頁巖互層.Alternating sandstones and...