| 1. | The pillars sustain the roof of the pit .
坑道顶用柱子支撑着。 |
| 2. | The pillars sustain the roof of the pit .
坑道顶儿用柱子顶着。 |
| 3. | Some larvae extend the galleries to form niches .
许多幼虫将坑道延伸扩大成壁龛。 |
| 4. | He was covered from head to toe in coal dust, like a miner coming up from the pit .
他从头到脚全是煤灰，就象一个矿工刚从坑道里出来一样。 |
| 5. | The geoisotherms around a gallery can be explained as a superposition of the original temperature field .
一个坑道周围的等温线可以理解为原始温度场的叠加。 |
| 6. | He sprang out of the truck and crept along a narrow wet passage to the place where his father was working .
他从车里跳了出来，沿着一条又窄又湿的坑道匍匐前往父亲作业的地方。 |
| 7. | Technical code for service gallery of railway tunnel
铁路隧道辅助坑道技术规范 |
| 8. | Rock bolts for mining and tunnelling ; terms
采矿和坑道掘进工程用锚杆.术语 |
| 9. | The roof of the tunnel was supported by wooden props
坑道顶用木柱支撑。 |
| 10. | They pushed forward saps into no man ' s land
他们把坑道向无人地带推进。 |
