jig bed density 跳汰床层密度
chip bed density 堆密度
jigging bed density 跳汰床层密度
high density printed bed-sheet 高密印花床单
density current bed 异重流底层
high-density circulating fluidized bed 高密度循环流化床
bed axial density 床内轴向密度
Experiment result shows that the change of the bed density can offer nicety bed information for the auto-control of jigger.
试验结果表明：根据床层密度的变化可以为跳汰机的自动控制提供准确的分层信息。
The force acting on mineral particle in VFB was specially analysed, and the main parameters interfering the separation of mineral according to bed density were also studied.
研究了振动流化床的流化特性及分选性能，分析了矿粒在振动流化床中的受力情况，分析了影响矿物按床层密度分层的主要参数，揭示了振动流化床的分选机理。
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。
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