他是我的唯一的支柱。
The application of simple hydraulic prop in the face of small coal mine is expounded.
阐述了单体液压支柱在小型煤矿工作面支护中的应用。
Fuqiang Coal Mine adopts mining full height actual process by adding the length of single prop once has made obvious economic and social benefit.
富强煤矿在回采工作面推广使用单体支柱加长一次采全高回采工艺，取得了明显的经济和社会经济效益。
This analysis has lead to the use of the "Yielding Metal-Prop" at "Ba-Yi" Hydranlic Mine.
本分析结果促使八一矿决定采用可缩金属支架。
This analysis has lead to the use of the "Yielding Metal-Prop" at "Ba-Yi" Hydranlic Mine.
本分析结果促使八一矿决定采用可缩金属支架。
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