The experimental equations are developed by practical measuring joint and coal intensity during coal excavation in an effort to make comprehensive evaluation of the occurrence of concealed faults.
英
美
- 通过对节理发育程度及煤的强度的实际观测,建立了经验公式,进而对采掘工作面前方是否存在隐伏断层做出综合评判。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries