用“underground mining”造句大全，underground mining造句
The strata movement and the ground surface subsidence caused by underground mining are serious underground engineering problems.
The Udachnaya Pipe is a diamond mine inRussia. The owners of the mine plan to cease its operations in 2010 -in favor of underground mining.
Discussed rock mass gravity collapse mechanism caused by under ground and overburden failure and surface settlement disaster, offered some underground mining and surface protective measures.
The owners of the mine plan to cease its operations in 2010 - in favor of underground mining.
The thick cropping orebody of a level and over which was originally put under underground mining was redesigned locarry on sleep slope opencutling.
The second phase of underground mining of Tonglushan Mine, Daye Non-ferrous Metals Company, will be finished, and the third phase of deep mining is going to be carried.
Diesel driven LHD units are highly efficient ore hauling equipment in underground mining operations.
Experimentally dressing the ores from the upper levels of underground mining indicates that the decided indexes during the exploring period is rational and feasible.
