These pulsations are known as the ac component of the rectifier output.

但是整流器的输出并不是纯粹的直流,而是脉动直流.

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The pulsations seemed to be coming from a star.

该脉动似乎来自于一颗行星.

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Are pulsations in pressure and quantity permissible?

是否允许有压力和数量有脉冲?

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The thermal damping is maximum for frequencies corresponding to pulsations are somewhere between isothermal and adiabatic.

当脉动处于等温和绝热之间某个状态时,相应频率下的热阻尼是最大的.

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