巷道壓力拱 的英文怎麼說

中文拼音 [xiàngdàogǒng]
巷道壓力拱 英文
roadway pressure arch
  • : 巷名詞1. (較窄的街道) lane; alley 2. (姓氏) a surname
  • : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
  • : 壓構詞成分。
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : Ⅰ動詞1 (兩手相合 臂的前部上舉) cup one hand in the other before the chest 2 (環繞) encircle; ...
  • 巷道 : [礦物學] tunnel; lateral; roadway; gallery巷道壁 wall; 巷道頂 breaks; 巷道斷面 drift section; 巷...
  1. It is shown that small - curvature arch support is very superior to trapezoidal support in mechanical properties, and has higher bearing capacity and better self - stability, so that such problem as short - distance coal gateways and lower branch coal gateways can not be bolted and is difficult to support in high pressure can be solved effectively

    結果證明:小曲率型支架學性能遠優于梯形支架,支撐能大,自身穩定性良好,有效解決了近距離和下分層煤層不可錨且在強下難支護的問題。
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