With increase of bed height, air pressure and power consumption rise, expansion ratio of the bed decreases, but the density stability and critical fluidized velocity of the bed are hardly changed.
随着床层高度的增加，所需风压及功率增大，膨胀率有所降低，而床层密度的稳定性和起始流化气速几乎不变。
With the increasing of pressure of gas generator under less injector number and expansion ratio, combustion efficiency increase.
在喷嘴数目较少和扩张比较小时，增加燃气发生器工作压强补燃效率增加。
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