1.
Application of Special Air Return Mine Shaft to Mine Safety Production
专用回风井在煤矿安全生产中的作用
2.
Rapid Sinking of the Upcast Shaft in Southern District of Gujiao Coal Mine through Drilling and Freezing of Top Soil Section
顾桥矿南区回风井表土段打钻、冻结快速施工技术
3.
Quick Roadway Excavation with Hoisting by Air-return Shaft
利用进回风立井改绞实现矿井快速掘进
4.
By determining the ventilation resistance of the mine shaft ventilation system, it is found that the ventilation resistance in return airways is particularly large and the ventilation degree is middle.
通过对矿井通风系统进行通风阻力测定,发现矿井回风段通风阻力过大且通风难易程度为中等。
5.
Technology of Anchored Bolt Supporting for Main Return-air Roadway at+450m Level in Gaohe Mine
高河矿井+450m水平总回风大巷锚杆支护技术
6.
A ventilating shaft, as in a mine.
（比如矿井中的）上风井
7.
From Historic Situation to Local Customs --The Change and Repetition of the Image in the Initial Extended Chapter Fictions;
历史烟云与市井风情——初兴期章回小说形象群的演变与交织
8.
supply with a brattice, to ventilate mines.
装上矿井通风用的风幛。
9.
Rapid Construction Technology of Freezing Well-wide Shaft of New Shanghai No.1 Ventilation Shaft Mine
新上海一号矿风井全井冻结井筒快速施工技术
10.
single well backflow tracer test
单井示踪剂回流试验
11.
double-channel echo well sounder
双通道回声井深测试仪
12.
Lining Slipform Construction Technology of Sending and Exhausting Single-shaft
单井送排风式竖井衬砌滑模施工技术
13.
Calculation on Effective Air Quantity of Mixing New Mind in Mine Series Ventilation New Wind-doped
矿井串联通风掺新风的有效风量计算
14.
mine static head
矿井通风系统静压头
15.
Standard for the equipment of ventilative safety of colliery
矿井通风安全装备标准
16.
Research on the optimizing technology of ventilation system renovation for multi-airshaft mine
多风井矿井通风系统优化改造技术研究
17.
A passage for drawing up smoke or air.
上风井，上风烟道发散烟或空气的通道
18.
East Air Shaft Main Ventilator Online Monitoring Research and Application
东风井主通风机在线监控研究与应用