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- Underground whole-space transient electromagnetic (UWTEM) method was tested at the driving face of a drift in a coal mine for detecting water-bearing zones ahead of tunneling. 根据初探结果,采用不共面同轴偶极观测方式时,UWTEM在巷道掘进头前方的有效探测范围约为70m,巷道每掘进50m进行一次跟踪探测。
- driving face of tunnel 掘进工作面
- He was always cool in the face of danger. 他在危险面前总是镇静自若。
- We should hold on in the face of hardships. 在困难面前我们应该坚持。
- Gas Management of High Gas and High Stress in Driving Face of Coal Tunnel in Chaohua Coal Mine 超化煤矿高瓦斯高应力煤巷掘进面瓦斯治理
- He showed great bravery in face of danger. 面对危险，他表现得十分勇敢。
- We are powerless in the face of such forces. 面对这样强大的力量，我们无能为力。
- He succeeded in the face of great opposition. 尽管遭到许多反对,他还是成功了。
- On the face of it, it seems quite reasonable. 从表面看,这似乎很合理。
- She exhibited no fear in the face of danger. 她面对危险毫无惧色。
- They showed courage in the face of danger. 面对危险他们表现出了勇气。
- He has always flown in the face of custom. 他一向公然违抗习俗。
- You should keep calm even in face of danger. 即使面临危险，你也应当保持镇静。
- driving face of a tunnel 掘进工作面
- A good soldier remains calm even in the face of danger. 一名好战士即使面临着危险也应保持冷静。
- He resigned in the face of mounting pressure from the shareholder. 面临来自股东们日益增长的压力，他辞职了。
- It has reference value to design of tunnel fire protection. 对隧道防火灾设计有一定的参考价值。
- The reasonable layout of tunnel below longwall face is described. 论述了受采动影响的底板岩巷的合理布置问题。
- In the face of such irrefutable facts, he was struck dumb. 在这样确凿的事实面前，他惊得哑口无言。
- The northern face of the mountain is almost vertical. 这座山向北的一面几乎是垂直的。
