safety drift

用法例句

The phenomenon of backward flow of smoke resulted from a mine fire in a horizontal tunnel was investigated.

为掌握烟流滚退的发生规律，采用理论分析的方法，对水平巷道火灾的烟流滚退现象进行了研究，导出了滚退发生的条件式，并建立了２个无量纲准则。

The end of a gallery or drift.

水平巷道或小平巷的一端

A gallery or drift in a mine.

矿井中的水平巷道或小平巷

horizontal underground passage in a mine

（矿坑中的）水平巷道.

A horizontal or nearly horizontal passageway in a mine running through or parallel to a vein

水平巷道穿过矿脉或与矿脉平行的矿井中水平或近似水平的巷道

A passage or gallery in a coal mine.

通道煤矿中的通道或水平巷道

The Study of the Celerity Single Tunneling Technique of the Horizontal Tunnel in the Second Shizuishan Mining;

石嘴山二矿水平巷道单巷快速掘进技术研究

at different levels beneath the ground horizontal tunnels are excavated in order to reach and follow the vein. These tunnels are called drifts;

在地下不同的水平，开拓有许多水平巷道以通向矿脉并随矿脉延伸。这种巷道叫作平巷;

The lengths of the probes used in horizontal hole in potassium mines were up to 200m.

钾盐矿井水平巷道使用的探头长度达到200米。

Design of the Level Moving Machinery for S/R Machine;

有轨巷道堆垛机水平运行机构的设计

a horizontal or nearly horizontal passageway in a mine running through or parallel to a vein.

穿过矿脉或与矿脉平行的矿井中水平或近似水平的巷道.

The tunnels connecting them, usually at right angles, are crosscuts.

连接平巷、一般与平巷成直角的巷道称为石门。

Mechansim of Deformation of Soft Rock Roadway with High Horizontal Geo-stress and Its Supporting Measures;

高水平应力软岩巷道围岩变形机理及支护对策

The Design of Level Moving Machinery of High-Acceleration & High-Speed Storage/Retrieval Machine

高速高加速巷道堆垛机水平行走机构设计

Study on Reasons of Rock Burst in Roadway and Prevention Technology of Steeply-inclined and Extremely Thick Coal Seam with Horizontally Slicing Way

急倾斜特厚煤层水平分层开采巷道冲击地压成因与防治技术研究

Study on Roadway Supporting Technology of Full-mechanized Sublevel-Top-Caving Mining for Steep Seam

急倾斜煤层水平分段综放开采巷道支护技术研究

Physical simulation test of damage character of surrounding rock under different levels of the horizontal stress

不同水平应力作用下巷道围岩破坏特征的物理模拟试验

The Simulation Algorithm and Implementation of Fire Disaster and Flood in 3D Tunnel

巷道内火灾和水害的仿真算法与实现

Application of the grouting and reinforce technology for stopping water on tunnel through the large fault

巷道过断层注浆加固堵水技术的应用