calcareous shale

 
  • 石灰质页岩,钙质页岩

calcareous shale的用法和样例:

例句

  1. Thin layers of sandy shale, and carbonaceous fragments are locally present.
    局部出现砂质页岩薄层和碳质碎屑。
  2. In the stone coal layer and the overlying black shale, there is a pyrite layer.
    在石煤层或其上部的碳质页岩中含黄铁矿层。

calcareous shale的相关资料:

临近单词

今日热词
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