Simple, compact structure, quick 90 degree on-off operation.

结构简单、紧凑， 阀体90度回转启闭迅速。

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Each of the first and second switches alternatively performs a turn-on operation and a turn-off operation.

所述第一和第二开关的每一个都交替地进行导通操作和截止操作。

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Because the base station power amplifiers have a low efficiency due to the back-off operation, efficiency enhancement techniques become very important.

但由于基站功放工作在一个很深的回退状态，功放效率增强技术就变得非常重要。

youdao

He said such work should be "an ongoing priority rather than the subject of a one-off operation by the agency".

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He was in command of the Allied military organization that pulled off Operation Torch (the invasion of North Africa), Operation Husky (Sicily), and Operation Overlord (Normandy).

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He said his view was that "this was a one-off operation, not likely to be repeated" but that "only substantial custodial sentences can meet the requirements of the case".

BBC: Belfast Crown Court