Make sure outrigger were fully extended and installed on firm pad.
確保外伸支架全部伸出并穩(wěn)固于地面上.
互聯(lián)網(wǎng)
Mechanical model for the elastic thick outrigger of roof coal is set up.
建立了頂煤彈性深梁力學模型,分析了頂煤應(yīng)力分布及頂煤破壞形式.
canoe
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