drilling
n. 钻孔；训练，教练；演练
v. 钻孔；训练（drill 的 ing 形式）
例句
They're drilling for oil off the Irish coast.
他们在爱尔兰沿海钻井采油。
《牛津词典》
By drilling, geologists can take measurements at various depths.
通过钻孔，地质学家可以在不同深度测量。
《柯林斯英汉双解大词典》
A highly inflammable liquid escaped into the drilling equipment.
一种高度易燃的液体漏进了钻孔设备。
