Additional negative feedback is provided to set loop gain to unity at the oscillation frequency, to stabilize the frequency of oscillation, and to reduce harmonic distortion.

为了使振荡频率稳定并降低谐波失真，需要加入一个在震荡频率处能够提供单位增益的负反馈路径。

youdao

But it's also possible-- actually compatible with accepting that fact-- there are two additional possibilities, that there might be some negative interaction effects.

但同样也有可能-,事实上与接受这个事实一致-,有另外两种可能性，可能会产生负面的相互影响。

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The additional negative impact on sales is from increasing generic introductions.

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Although I would blame the latest downturn mostly on the state of European banks and sovereigns, the fact that these talks ultimately fell through was an additional negative.

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Additional negative factors include chronic unemployment and difficulty accessing credit.

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