调查发现安慰剂越昂贵，其治疗成功率越高，并且静脉注射形式比口头形式更有效。

The more expensive the placebo, the higher the success rate, the study found, and intravenous injections are shown to be more effective than oral medication.

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高的压缩比不仅可以增加功率，而且会带来更多的有效功率。

Higher compression ratios not only boost power but also give more efficient power.

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研究发现，较大的激光器注入电流可以有效地抑制频率啁啾，较高的注入信号光功率则可以在保证高转换信号消光比的同时抑制频率啁啾。

The results show that higher injected current can restrain the frequency chirp effectively, and higher input optical power can also do that, meanwhile, good extinction ratio is ensured.

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