小测验：选择正确的单词

1. strip mining
   露天开采
   
2. mining geology
   采矿地质学，矿山地质
   
3. opencast mining
   露天开采
   
4. placer mining
   砂矿井采
   
5. mining engineer
   采矿工程师
   

1. Dredging is the most important placer-mining method today.
   挖掘法现在是最重要的砂矿开采的方法。
2. Your suggestion makes against mine.
   你的提议和我的相左。
3. The book whose page is torn is mine.
   那本书页破损的书是我的。
4. I ran into a former friend of mine today.
   今天我遇到了旧日的朋友。
5. This camera is the same shape as mine .
   这个照相机和我那个照相机外形一样。

　2个名词解释