river mining的意思|示意

---

river mining相关短语

1、 under river mining 河下采煤

2、 sand mining on river channel 河道采砂

3、 mining under river 河下开采

4、 river channel sand mining 河道采砂

5、 coal mining under river 河下采煤

6、 sand mining in river channel 河道采砂

7、 coal mining under a river 河流下开采

8、 sand mining in Yangtze River 长江采砂