It is necessary that drilling vessel is capable of standing still under the action of ocean currentwave surge tropical storm and internal wave current in winter.
在冬季的洋流、涌浪以及热带风暴和内波流作用下钻井船有能力保持位置不动是很有必要的。
2
The electron back bombardment phenomenon, which results in anomalous increase of gun current emission, has been observed in a series of our side coupled standingwave accelerating tubes.