... 手摇钻弓柄 drill bow 手摇钻机 hand boring machine; hand drill machine; manual auger 手摇钻进 hand drilling ...
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hand boring machine
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
The sequence of excavation for the shaft of diversion system at Pushihe storage power station is to excavate the pioneer well used by back well boring machine, then by hand air drill to expand it.
蒲石河抽水蓄能电站引水系统中的竖井开挖，拟采用反井钻机进行导井开挖，人工手风钻钻孔扩挖的方式施工。
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