shortwall mining是什么意思

用法例句

In this paper, the general features, technical development, equipment matching and coal mining technology of short wall shearers both at home and abroad are discussed, which supplies reference to the units doing research, manufacturing, type selecting and applying of shearers.

　本文论述了国内外短壁采煤机的总体特点、技术发展、设备配套和采煤工艺,可供采煤机科研、制造、选型和使用单位参考。

Experimental study on time-dependence of overlying strata deformation for short wall mining;

短壁开采覆岩随时间变形的试验研究