Removable water-tube connection for stope drills

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• 2. 一种浅埋单关键层采场覆岩结构的网格状钻场实测方法 [P] . 中国专利： CN111396050A . 2020-07-10
• 3. Water-tube back-head connection for rock drills [P] . 美国专利： US1543871A . 1925-06-30

  机译： 凿岩机的水管背面连接

• 4. Connection between a water-tube and a pressure-basin mounting the water-tube [P] . 美国专利： US1342286A . 1920-06-01

  机译： 水管与安装水管的压力盆之间的连接

• 5. Valve arrangement for driving powered cylinder of stope supporting structure in underground mines, has damping valve provided between pressure connection and cylinder connection, and comprising throttle [P] . 德国专利： DE102009042120A1 . 2011-03-24

  机译： 用于在地下矿井中驱动采掘场支撑结构的动力缸的阀装置，具有在压力连接和缸连接之间设置的阻尼阀，并且包括节流阀

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• 6. Seismic-Resistant Connections Between Precast Concrete Columns and Drilled Shafts. [R] . Tran, H. V., Eberhard, M. O., Stanton, J. F. 2012

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