旋轉鉆孔機 的英文怎麼說
中文拼音 [xuánzhuǎnzhēnkǒngjī]
旋轉鉆孔機
英文
rotary drill-
8 it can be used with various drilling method such as carbide bit drilling, anger drilling, dth hammer drilling, follow - up casing drilling etc. 3
8鉆機可適用多種鉆進工藝方法，如合金回轉鉆進螺旋鉆進潛孔錘鉆進跟管鉆進等。8 it can be used with various drilling methods such as carbide bit drilling, anger drilling, dth hammer drilling and follow - up casing drilling etc. 3
8鉆機可適用多種鉆進工藝方法，如合金回轉鉆進螺旋鉆進潛孔錘鉆進跟管鉆進等。8 the rig is suitable for various drilling methods such as carbide bit drilling, auger drilling, dth hammer drilling, follow - up casing drilling, etc. 3
8鉆機可適用多種鉆進工藝方法，如合金回轉鉆進螺旋鉆進潛孔錘鉆進跟管鉆進等。Yg - 80a construction drilling rig is a full hydraulic operated top drive power head drill. it is used to drill heavy duty pretension anchor hole at side slope of water power station, railway or highway projects, as well as drainage holes
Yg - 80a型錨固工程鉆機是在yg - 80鉆機基礎上研製的，科學分配鉆機性能參數，使鉆機更適合巖石潛孔錘鉆進跟管鉆進，同時兼顧土層合金回轉鉆進螺旋鉆進工藝。According to the work principle, mechanical model theory and simulation analysis of the hydraulic control valve of the drilling tool, the optimal design parameters of the angle of center of circle of the high pressure hole of upside valve are proposed ; the influence of the charging and discharging lag times on palm supporting capacity is discussed ; and the theoretic basis of designing the control valve of the drilling tool is put forward in the paper
通過對調制式旋轉導向鉆井工具液壓盤閥機構的工作原理、力學模型的理論和模擬分析，給出了上盤閥高壓孔圓心角的最優設計參數；討論了充液、泄液滯后時間對巴掌支撐力的影響，提出了調制式旋轉導向鉆井工具控制閥機械設計和控制的理論依據。分享友人