【字彙解釋】

Drilling, percussing 衝擊鑽孔

Drilling

n. 訓練, 演練, 鑽孔, (常用複)鐵屑

percussing ：


【前後詞彙】

Drill, rock 鑽石機
Drill, rotary 旋轉鑽
Drill, steam 汽鑽
Drilling, core 取心鑽孔
Drilling, hand 人工鑽孔
Drilling, hydraulic rotary 水力廻轉鑽孔
Drilling, percussing 衝擊鑽孔
Driver, pile 打樁機
Driver, steam pile 蒸汽打樁機
Driving 打樁
Driving, tunnel 隧道開鑿