小测验：选择正确的单词

1. oil shale
   n.[地]油页岩
   
2. shale oil
   n.[地质]页岩油(由油页岩中干馏而得的石油)
   

1. 12 Collecting the drill cuttings at the shale-shaker.
   到振动筛处取点钻屑来。
2. Shale underlies coal.
   页岩层在煤层之下。
3. embed a post in concrete;fossils embedded in shale.
   把柱子嵌在水泥中;牢牢嵌在页岩中的化石
4. Any of various dark gray sandstones that contain shale.
   杂砂岩任何含有页岩的多种黑灰色砂岩之一
5. Most of the rock in this mountain is shale.
   这座山上大部分的岩石都是页岩。

　1个名词解释