Thereinto, the design of micro-turbulence generator is crucial to the performance of the hydrodynamic headbox.
其中，微湍流发生器设计是关键，其直接决定了水力式流浆箱的工作性能。
Hartmann hydrodynamic acoustic generator can be used for acoustic treatment and is characterized by low cost, simple construction, durability and convenient power source.
哈特曼流体动力式声波发生器是一种声处理发声器，具有成本低廉、结构简单、坚固耐用以及动力源方便等特点。
As a special hydrodynamic sound generator, ultrasonic siren has applicative effects on viscosity reduction, scale removal on electric pump well.
作为一种特殊的流体动力式声波发生器，超声旋笛在电泵井防垢降粘方面有着显著的使用效果。
As a special hydrodynamic sound generator, ultrasonic siren has applicative effects on viscosity reduction, scale removal on electric pump well.
作为一种特殊的流体动力式声波发生器，超声旋笛在电泵井防垢降粘方面有着显著的使用效果。
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