horizontal drilling hole

• 水平钻孔

horizontal drilling hole的用法和样例：

例句

1. And it is used successfully in shield tunneling, horizontal drilling, deep drilling, slotted walls and bore piles construction projects.
   主要应用于盾构隧道挖掘，水平钻孔，深层钻孔，开凿围墙和钻桩的建筑项目。