vertical shaft development的意思|示意

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立井开发

vertical shaft development的网络常见释义

立井开拓 ...关键词：立井开拓，条带式，倾斜长壁采煤法，综合机械化采煤，中央并列式通风 [gap=1494]Keywords：vertical shaft development, mining in strips, long wall mining method along the dip, comprehensive mechani..

vertical shaft development相关短语

1、 vertical shaft development system 竖井开拓

2、 development of vertical shaft 竖井掘进