1.
The Technology and Practice of the Safe Pillar Stoping in the Mined Area of Shizishan Copper Mine
狮子山铜矿采空区矿柱安全回采技术与实践
2.
Confirmation of safety mining upper limit and its practice in Jining local coal mine
安全回采上限的确定及在济宁地方煤矿的实践
3.
The Technical Research of Safe Backstoping Craft of the Undermining of the Eastern Open-pit of Daye Iron Mine;
大冶铁矿露天转地下安全回采工艺的研究
4.
Stoping Technique of NO 100 Ore Body under Large Overburden Rock
大规模覆岩下100号矿体残矿安全回采技术
5.
Safety Mining Feasibility and Coal Face Support Control under Main Roof of Thick Igneous Rock
厚层岩浆岩老顶下安全回采的可行性及支护控制
6.
Research of Extraction Quality Evaluation of a Stope and Safety and High-efficiency Extraction of Ore Pillar Based on a Cavity Monitoring System
基于空区实测的采场回采质量评价与矿柱安全高效回采研究
7.
Safety Analysis of Tailing Dam in Tailings Stoping Process
尾矿回采过程中尾矿坝的安全性分析
8.
Study on the Safety Information of Long Wall Coal Face;
回采工作面安全数据信息化管理与决策分析
9.
Analysis on the safe efficient extraction in the irregular work face in DongPang mine
东庞矿不规则工作面安全高效回采技术
10.
Research and Application of New Technology of Safe Withdrawing and Fast Installation at Fully Mechanized Face
综采工作面安全回收和快速安装新工艺的研究与应用
11.
DC low voltage control circuit is adopted that it is more suitable for the long time work under the unsteady power.
采用直流低压控制回路，更适于电压不稳连续长时间工作，安全性高。
12.
Research of Safe and Efficient Recovery Technology of Ore-body in Open Isolated Zone in Xinhui Gold Mine and its Application
露地隔离带矿体安全高效回采技术在鑫汇金矿研究与应用
13.
From the point of transaction security, two security strategies are designed: on the macro level, business logical transaction rollback is discussed;
接着从事务安全的角度提出了两种安全策略：宏观上采用业务逻辑上的事务回滚；
14.
Mining all Height at One Time Technology of Large Mining High Angle Compound Mining Working Face
大采高大倾角综采工作面一次采全高回采工艺
15.
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。
16.
Steps have been taken to ensure safety.
已采取了安全措施。
17.
The most supreme thing is to return safely.
最重要的是安全返回。
18.
They were lucky to get back in one piece.
他们安全返回, 十分幸运.