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Meaning of 矸石

Lookup via: Pinyin | Radicals
gān shí
waste rock (mining); gangue (worthless minerals mixed in with coal or ore)
Example Sentences
1
The filling process of waste was designed.
2
The miners muck the waste rock every other day.
3
Spray explosion of gangue hill is a common calamity in coal mine.
4
In addition, the waste filling technique was designed successfully applied in Xingdong coal mine.
5
The discharge system for the belt conveyance of the waste rock in the mine well solves these problems.