| 释义 |
roadway tunneling
基本例句
巷道掘进
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。 |