Roadway tunneling
英
美
- 巷道掘进
双语例句
- The roadway excavation and supporting are crucial techniques in mining engineering.
巷道掘进与支护是采矿工程的技术关键。 - Along with the rapid development of coal industry, it is higher request to the laneway tunneling speed.
随着煤炭工业的迅速发展，对巷道掘进速度的要求也越来越高。
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