1.
subsurface controlled subsurface safety valve
井下控制井下安全阀
2.
surface controlled subsurface safety valve
地面控制井下安全阀
3.
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
4.
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
5.
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
6.
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
7.
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
8.
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
9.
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
10.
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
11.
Test of glass fiber reinforced plastic product safety property for coal mining
GB16413-1996煤矿井下用玻璃钢制品安全性能检验规范
12.
Simulation of Hydraulic Controllable Shut off Valve Based on Dynamic Mesh Technology
井下自动排水用液压可控闸阀仿真研究
13.
The Design of Automatic Communication Control System for Well Safety
基于矿井安全自动通信控制系统设计
14.
Bottom-Hole Dynamic Coring Assembly Analysis Using the Finite Element Method and Deviation Control Research of Chinese Continental Scientific Drilling No.1 Well;
科钻一井井下动力取心钻具组合有限元分析与井斜控制研究
15.
Helmets were dished out before the miners went underground
下井之前，给矿工们分发了安全帽。
16.
The Modeling and Implementation of Mining Safety Information System;
煤矿井下安全信息系统的建模与实现
17.
Analysis and Evaluation of CNG Station Gas Storage Well;
CNG加气站地下储气井安全分析与评价
18.
The Design and Development of Safety Monitoring and Personnel Positioning System of Underground Coal Mines;
煤矿井下安全监控及人员定位系统的研究与设计