open-cast coal 露天煤矿
open-cast 露天矿区
open cast coal 露天开采的煤
open-cast mining 露天开采
Huolinhe open-cast coalmine 霍林河露天煤矿区
open-grained cast iron 粗晶粒铸铁
ADJ At an opencast mine, the coal, metal, or minerals are near the surface and underground passages are not needed. (指煤、金属及矿物等)露天开采的 [英国英语] [ADJ n]
The open cast method is an advanced stripping technology with low operation cost.
拉斗铲倒堆剥离是一种先进的开采工艺，机械化程度高，开采成本低。
The selection of dragline is a key problem to be handled when applying dragline for open cast in surface mining.
露天矿应用拉斗铲倒堆工艺的关键问题首先要做好拉斗铲的选型。
This task is a definite value of use for reference to improve equipment repair quality at Heidaigou Open Cast Coal Mine and reduce integrative repair cost.
本课题对于提高黑岱沟露天煤矿设备维修质量、降低综合维修成本具有一定的借鉴价值。
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