1.
floating in casing
下部装回压阀的套管柱
2.
Copper tubing shall not be used on the downstream side of the backflow preventer.
在防回流阀的下游不应该安装铜管。
3.
DEVELOPMENT OF THE OUTSIDE DIAMETER OF 244.5MM MEASURABLE PRESSURE BELOW VALVE ANNULUS SAFE VALVE
可测量阀底压力的Φ244.5mm井下套管封井器研制
4.
Lift off the first check valve cover. The check valve inside will come out with the cover and is attached with a bayonet type locking arrangement.
卸下第一止回阀阀盖。内部的止回阀将随着阀盖拔出来，附带着卡口锁定装置。
5.
Local buckling of concrete-filled square steel tubular column subject to axial compression
方钢管混凝土柱在轴压下的局部屈曲
6.
Install a shutoff valve in the cold water inlet. Install a listed temperature-pressure relief valve in the remaining fitting.
在冷水进水管上安装一个关断阀。在剩下的螺纹接头上安装额定温度/水压的安全阀。
7.
Part-turn valve actuator attachment
GB/T12223-1989部分回转阀门驱动装置的连接
8.
The Theoretical Research on the Local Buckling of Concrete-filled Steel Tubular Column Subjected to Axial Compression
钢管混凝土柱在轴压下的局部屈曲的理论研究
9.
pipe reciprocator
上下活动套管的装置
10.
Application of the automatic alternate valve high and low presser on the assembling line of odd hydraulic pillar
高低压自动换向阀在单体液压支柱组装线上的应用
11.
Insensitive to excess-pressure (caused by a blocked discharge pipe, for instance) provided by an incorporated excess-pressure safety valve in the hydraulic oil reservoir.
泵不会超压（如在出口管路堵塞的情况下），因为在液压油池中装有超压安全阀。
12.
Controlled closing of the valve, opens the mainline check valve, gradually increasing line pressure.
阀门受到控制的关闭操作，开启主管线止回阀，逐渐增加管线压力。
13.
The portion of a garment that covers the lap.
下摆外套下部压住膝盖的部分
14.
Install throttle body to intake manifolRefer to Throttle Body installation in this section of the group.
在进气歧管上安装节流阀体。请参阅单元中本节的节流阀安装部分。
15.
CFD Study for the Flow Field between the Valve Core and the Valve Sleeve;
阀芯阀套间缝隙内部流场的CFD计算
16.
The device should not be installed inside a wall or in a concealed location. Copper tubing shall not be used on the downstream side of the backflow preventer.
这种装置不应该安装在墙内或隐蔽的位置。在防回流阀下游不能采用铜管。
17.
The bigger the effective eccentricity, the higher the upper drill string's lifting force, the higher the positive pressure on casing/ drill string, and the more serious the wear.
有效偏心距越大，上部提升力越大，套管／柱之间的正压力将越大，磨损将越产重。
18.
retrievable hydraulic-set casing Packer
可收回的液压坐封套管封隔器