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.
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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