叶片间的振动相位差和来流冲角对振荡叶栅的稳定性均有较大影响。

Stability of an oscillating cascade is affected to a great extent by the interblade phase and incidence angles.

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数值结果表明：1）在微泵扩散管的过流截面上流速有时间相位差和回流现象。

The numerical results indicate that 1) Phase differences in time of flow velocities and backflows occur across section of diffuser connecting to pump chamber;

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