坑道支柱 的英文怎麼說
中文拼音 [kēngdàozhīzhù]
坑道支柱
英文
pit prop- 道 : 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) ...
- 支 : Ⅰ名詞1 (分支; 支派) branch; offshoot 2 (地支) the twelve earthly branches3 (姓氏) a surname...
- 坑道 : 1 [采礦工程] (井筒、平峒和巷道的統稱) gallery; adit; mine2 [軍事] (地下工事; 地下通道) (unde...
- 支柱 : pillar; support; prop; mainstay; sustentaculum; stull; brace; crutch abut strut; raker; shore; ma...
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The pillars sustain the roof of the pit.
坑道頂用柱子支撐著。Excavations and trenches - slopes, planking and strutting, breadths of working spaces
坑道和溝渠.工作空間的坡度鋪板和支承柱寬度The roof of the tunnel was supported by wooden props
坑道頂用木柱支撐。Round pit timber ; load bearing capacity of props and bars ; calculation
礦山坑道用圓木.支柱和圓棒的承荷能力.計算分享友人