Environmentalists condemned the decision to allow drilling, saying it would generate industrial levels of noise in the water and pollute both the air and surrounding water.
环保人士谴责允许钻井的决定，说它将在水中造成工业水平的噪音，污染空气和周围水域。
2
The air-raid alarm went on drilling away from the gate.
从大门不停地传来刺耳的空袭警报。
3
Establish the erosive wear mechanism of drilling string in airdrilling and put forward that erosion wear is a substantial cause to promote drill string failure.