Compared with rectangular chamber, the axial expansion velocity is small and radial expansion velocity is big in stepped-wall chamber under the same conditions.

和矩形结构相比，同样的工况下，渐扩结构射流轴向速度较小，径向速度较大。

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The result shows that there occurs minor difference between two formulas in case of high temperature and mini expansion velocity, and both formulas can be applied in CERN and BNL energy.

结果表明，在高温、小膨胀速度时，两种关联函数公式之间的差别很小，在CERN和BNL能区可使用任一公式。

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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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The sharp expansion of the monetary aggregates since the beginning of September was needed to offset the dramatic decline in velocity and the hoarding of reserves by the banking system.

FORBES: The Fed's Historic Move