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- close quarter piston air drill 角隅风钻
- piston air drill 活塞式风动凿岩机
- Calculation method of piston air induced by train motion in subway tunnels is derived based on fluid continuity equation and Bernoulli equation. 以流体连续性方程及伯努利方程为理论依据,针对地铁特点,推导得出隧道内列车活塞风的计算方法,并对影响活塞效应的因素做定性分析。
- There into, the air grinding machine, air drill and air water pump was awarded Shanghai excellent product and the Science and Technology Awards by CSSC. 气动工具有11个系列40多种产品,其中角向磨光机、气钻以及气动抽水泵等产品分别获得上海市优质产品和中国船舶工业总公司科技成果奖;
- Common Problems and Its Treatment for the Piston Air Compressor 活塞式空压机的常见故障与处理
- Inclination of hole-section penetrated by air drilling can be controlled within planned range,and its hol... 这表明大庆油田外围深部地层稳定性良好,适合应用空气钻井技术。
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- All the apprentices rushed to help fit the piston. 徒工们都跑过来帮助装活塞。
- The archers sent their shafts through the air. 弓箭手向空中射出利箭。
- Get lathe No.9 set to turn the new piston. 把九号车床调好来车这个新活塞。
- Air drilling is one of the effective means to increase drilling ROP, able to reach an ROP several times that of a conventional drilling. 采用空气钻井技术提高钻井机械钻速非常有效,钻速是常规钻井机械的数倍。
- SHIFENG TIAN,ADEWUMI M A.Multiphase hydrodynamic model predicts important phenomena in air drilling hydraulics[J].SPE 21559. 陈家琅;陈涛平;魏兆胜.;抽油机井的气液两相流动[M]
- Air has a low density and great compressibility.The volumetric flow rate of air in air drilling varies with pressure and temperature,which in turn,change with wll depth. 气体不仅密度低,而且具有很大的可压缩性,所以空气钻井的体积流量将随压力和温度变化,而压力和温度又随井深变化。
- The piston seems ok. Maybe something else is wrong. 活塞似乎没问题。可能别的什么东西坏了。
- Review of Direct Drive Portable Reciprocating Piston Air Compressors 直联便携式空气压缩机技术进展
- The lack of air in the room make everyone sniffle. 屋子里空气缺乏,使得每个人都频频吸气。
- During the intermission, let's go out for some fresh air. 幕间休息时,我们出去呼吸呼吸新鲜空气吧。
- The air held a foretaste of a storm. 天气有要括大风的迹象。
- The air was reeking with the smell of tobacco. 空气中弥漫着烟草的气味。
- A walk in the fresh air will pep me up. 我在空气新鲜的地方散步就感到精神饱满。