转换是不必要的，比需要的慢，即使因为专利原因不能考虑基于移位的转换。

The transform is needlessly slower than necessary as well, though a shift-based transform might be out of the question due to patents.

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研究结果表明这种慢波结构相对原结构在微波输出功率和转换效率上都有很大提高，微波工作频率与预测相符合。

The result indicates that the slow wave structure significantly improves the microwave output power and conversion efficiency. The simulated microwave frequency agrees well with the predicted value.

youdao

首先考虑的是慢光速到超光速的转换。

First, we consider the switching of velocity.

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