During the excavation operation of the Sanshuigou mine air return shaft passing through No.
在西井三水沟回风立井揭穿3号煤层过程中,为消除突出隐患,制定并实施了三水沟回风立井井筒揭露煤层方案。
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
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
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。
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
Construction and Application of Curtain for Cutting off Water in Well Point Recharging System
井点回灌系统截水帷幕的建立及其应用研究
Study on Automatical Generation of Stereoscopic MAP and Network Graph of Mine Ventilation System;
矿井通风立体图及网络图自动绘制方法的研究
The Study on Joints and Structure Analysis of Ventilating Shaft of Cross-ocean Tunnel;
沉管隧道自立式通风竖井结构分析及接头研究
A ventilating shaft, as in a mine.
（比如矿井中的）上风井
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
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
The Stability Analysis of Ventilating Shaft of Cross-ocean Tunnel and the Construction Problems Discussion;
跨海隧道自立式通风竖井整体稳定分析与施工问题探讨
laser guide of vertical shaft
立井激光指向[法]
Experience on the shrink shaft drilling construction reserve period
缩短立井井筒凿井施工准备期的经验
supply with a brattice, to ventilate mines.
装上矿井通风用的风幛。
Lin came back to China in 1925 to work as principal of the Beiping State Vocational art School.
1925年，林风眠回国，任北平国立艺术专科学校校长。]
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
Also, the return on the investment is slow because much water must be injected to establish reservoir pressure and get the wells on production.
当然，由于需要注如大量的水以建立起油藏的压力以及使油井投产，投资的回报也慢。
As our men were marching back to the Chingkang Mountains via Chungyi and Shangyu, the enemy force from southern Kiangsi, the Independent 7th Division under Liu Shih-yi, pursued us as far as Suichuan.
我军经崇义、上犹向井冈山回军之际，赣南敌军独立第七师刘士毅部追至遂川。