但如果谨慎一点，你的估计就是，乘数效应效果很小，或者没有效果。

Now, he says, "if you want to be prudent you estimate little to no effect."

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本文给出的逆波束形成（IBF）方法具有抗多途效应效果好、算法简单、易于工程实现等优点。

The inverse beamforming (IBF)algorithm is simple and easy to be used in the practical engineering.

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反而我们看到的是加上人们对治疗本身的期望之后即安慰剂效应的治疗的效果。

Instead, we see the effects of treatment plus placebo effects that are shaped by the subjects' expectations.

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