您要查找的是不是：
- pressure balanced poppet 平衡阀芯
- In kill operation, it is required to keep the downhole pressure stable and the well bore pressure balanced. 在压井过程中,要求井底压力能够保持不变,并使井眼系统的压力保持平衡关系。
- Tecsis pressure balances meet extremely exacting requirements. 我们tecsis所提供的压力秤,正是能完全满足这一要求的产品。
- A pressure balancing bellows section is installed above the top elbow. 压力补偿波纹管安装在顶部弯管上。
- earth pressure balanced shield (EPBS) 土压平衡式盾构
- earth pressure balanced shield tunneling machine 土压平衡式盾构机
- foam pump pressure balanced proportioning unit 泵入平衡压力式泡沫比例混合装置
- To determine dust catalyst density in the smoke of refinery set by pressure balance system. 采用动压平衡采样系统测定炼油厂催化装置再生烟气中的催化剂粉尘,结果表明,该系统比预测流速法自动化程度高,故障率低,操作简便,数据准确可靠。
- Pressure balance is also applied in WOB calculation. Field test showed that both models are reliable and the calculated results are correct. 同时也用压力平衡法计算出钻压，现场试验表明，两模型可靠、计算结果正确。
- Earth pressure balance (EPB) shield is used most extensively in shield construction. 土压平衡式盾构机是盾构法施工中应用最为广泛的盾构机。
- In visible experiment, the time of pressure balance decrease with the initial pressure of PRZ and temperature of CMT. 在可视化实验中随着PRZ初始压力的增加，以及CMT初始温度的增加，压力平衡响应时间减小。
- Pulsation dampener can be widely used in pipeline, drilling exploration equipment, pressure balance or pulsation dampening of reciprocating pump. 空气包（脉动缓冲器）可广泛用于管路、钻井勘探设备、往复泵的压力平衡或脉动缓冲。
- The high and low pressure balance valves on the pressure system adopt the new electric-hydro complex control on-off vales. 压力平衡系统的高、低压平衡阀均采用新研制的电液复合控制开关阀。
- When the pressure balance valve before and after the start smaller than the smallest pressure spring are not compressed, the largest circulation. 当平衡阀前后压差小于最小启动压差是弹簧未被压缩，流通面积最大。
- The relation of pressure balance must be kept properly in a circulation loop for keeping a fluidized-bed unit in working order. 为保证流化床装置正常运行,循环回路必须有一个适宜的压力平衡关系。
- The demonstration is also useful to illustrate the concepts of Drilling Mud, Blowout Prevention, Hydrostatic Pressure, Pressure Balance, Gas Compressibility and Density. 该演示对于阐明钻井液、井喷预防措施、流体静压力、压力平衡、密度等概念也很有用。
- Pressure balance system is used to balance lateral water pressure outside reinforced concrete of the air cushion surge chamber and air pressure in the surge chamber . 同时,采用平压系统平衡气室钢筋混凝土外侧水压力和气室气体压力。
- Experiments were carried out in a lab-scale double-dipleg circulating fluidized bed (DDCFB) to study effects of experiment conditions on re-circulating rate and pressure balance. 结果表明:在双级料腿循环流化床中,与常规的循环流化床相比,循环流率的规律没有发生变化。
- YUN Xiao-yin,LIN Wei-gang,WU Shao-hua,et al.A study on pressure balance distribution of double-dipleg circulating fluidized bed[J].Acta Energiae Solaris Sinica,2003,24(2):99-102. [9]贠小银;林伟刚;吴少华;等.;双级料腿循环流化床压力平衡分布的研究[J]
- The beer comes out of the barrel under pressure. 啤酒受到压力从桶中流出。
