1.
slip ram preventer
带卡瓦的闸板式防喷器
2.
Pull out (or run in ) the string up to the shoe and hang it on the 5 inches pipe ram] .
起钻（或下钻）至套管鞋处，并把钻具悬挂在5”闸板防喷器上。
3.
Work Analysis on Partial Wheel-brake Type Broken Belt Protector
偏心轮闸块式断带抓捕器的工作分析
4.
slip-weld hanger
卡瓦-焊接式悬挂器
5.
blowout preventer of three stage packer type
三段密封器式防喷器
6.
overshot with bow
带碗形卡瓦的打捞 筒
7.
portable explosion-proof gas detector
便携式防爆瓦斯探测器
8.
Effect of United Casting Height of Gate Pier and Bottom Plate on Gate Pier Crack Control
闸墩与底板连浇高度对闸墩防裂效果的影响
9.
Dry spray: An anti-set-off spray using dry powder.
喷粉器:用干粉喷剂的防止反印喷粉器。
10.
brake block adjusting gear
制动器闸瓦调整装置
11.
clench planking
盖瓦叠板式盖瓦式叠板
12.
Have the Camron type U BOP pressure-tested with 10,000psi.
卡麦隆U型防喷器试压1000磅/英寸2。
13.
Application of the Cement Injection Pile Technique in Zhongjie Floodgate Engineering
粉喷桩技术在中捷防潮闸工程中的应用
14.
The Application of Jet Grouting Impervious Wall in Shiplock Project of Hydropower Station
高压旋喷防渗墙在水电站船闸工程中的应用
15.
Release the clutch, handbrake, eg of a lorry
松开离合器、手闸（如卡车上的）
16.
Design of Contactless Reader with USB Interface;
带USB接口的非接触式读卡器的设计
17.
Study on a Technology for Detecting Brakes of Railway Wangons Based on Machine Vision;
基于机器视觉的铁路货车闸瓦检测技术研究
18.
double grip retrievable casing packer
双卡瓦可回收式套管封隔器