调节副床二次风流化速度，可以调整两床物料循环率的分配比例。

The pressure distribution and solid recirculation rate were investigated in dual circulating fluidized beds.

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我们不知道是该立即起身离开床，还是什么都不做，只静静等待地震停止，因为我们还是睡眼惺忪，一副很想睡的模样，而且隔天早上还要早起。

We had no idea if we shall wake up and jump out of the bed immediately or just do nothing but wait for its stopping quietly since we were sleepy and had to wake up early in the next morning.

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