tunnel ahead的意思|示意

The paper described the relational parameters and vibration test of the underwater blasting of guide ditch ahead of water conveyance tunnel.

本文对导流隧洞进口围堰堰外引渠水下爆破方案的有关参数和震动监测等进行描述。

Being busy means adopting tunnel vision, constantly focusing ahead, with no time to deviate, to wander, to glance at the richness and the possibilities all around you.

变得忙碌意味着采取管状视野，持续的关注前方，没有时间偏离、徘徊，对你周围丰富而无限可能的世界撇上一眼。

Similar to the Seattle project, this one required new drilling techniques, including the use of probe holes to assess ground conditions ahead of the huge tunnel-boring machines (TBM).

与西雅图的工程相似的是，这里的项目也需要新的钻探技术，包括在上马巨型隧道掘进机(TBM)前使用探孔来评估土质条件。