1.
surface controlled subsurface safety valve
地面控制井下安全阀
2.
subsurface controlled subsurface safety valve
井下控制井下安全阀
3.
ball type surface controlled safety valve
地面控制的球型安全阀
4.
Development of Downhole Control Valve for Entire Underbanlanced Operation
全过程欠平衡作业用井下控制阀研制
5.
Wellhead surface safety valves and underwater safety valves for offshore service
海上用井口上部安全阀和水下安全阀规范
6.
Ground Wind Well Multi-parameter Monitor System Research Based on GPRS
基于GPRS的地面风井多参数安全监控系统的研究
7.
Remove the relief valve hose from fitting below inlet ball valve.
从进口球阀下面连接件拆卸安全阀软管。
8.
This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
9.
The safety valve of his anger opened.
他控制怒火的安全阀打开了。
10.
Safety testing system for electrically operated water valves based on PLC
基于PLC控制的电动水阀安全检测系统
11.
The Research and Development of Intelligent Valve Control System of Pumping Well;
井下智能阀门控制系统的技术研究与装置开发
12.
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。
13.
Recommended method for design, installation, repair and operation of subsurface safety valve system
井下安全阀系统的设计、安装、修理和操作的推荐做法
14.
Recommended practice for design, installation, repair and operation on subsurface safety valve system
井下安全阀系统的设计、安装、修理和操作的推荐作法
15.
The system consists of feedwater pump control, adjusting valve level control, safety and alarm devices.
该系统包括给水泵控制、调节阀阀位控制以及安全保护和报警。
16.
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinders. Use a check valve to prevent reverse flow into the cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
17.
The Research and Implementation of Underground Coal Mines Safety Monitoring System
矿山井下安全监控系统的研究与实现
18.
Design on a Monitored Control System Used in Coal Mine Based on DSP
基于DSP的井下安全生产监控系统设计