tunneling advance rate的用法和樣例：
例句
- Along with the rapid development of coal industry, it is higher request to the laneway tunneling speed.
隨著煤炭工業的迅速發展，對巷道掘進速度的要求也越來越高。 - Under gassy coal seam condition, the full-heading development is employed.Because of the fast heading a high rate of gas emission arises.
在瓦斯含量較大的煤層採用綜掘掘進巷道，由於掘進速度快，出現了瓦斯湧出量過大的現象。
