The pressure difference on the wall between actuator and the exit of primary jet is great.
主流通道内侧压力差主要产生在激励器与主流出口之间的上下壁面上。
The pressure gradient and entrainment of vortexes are main reasons that synthetic jet actuator controls low speed primary jet direction.
压强梯度的存在和旋涡的卷吸作用是合成射流激励器控制宏观低速流流动方向的主要因素。
The actuator at an angle can change greatly the primary jet direction and has a good effect on thrust vectoring without increasing input power.
在不增加激励器输入功率的情况下，带倾角激励器可以极大地增加主流偏转角度，推力向量控制效果很好。
Primary experiment research had proved that using the hydraulic resonance to improve strength of pulsed jet was available.
初步实验研究证明，利用水力共振提高脉冲水射流的强度是可行的。
High pressure water jet and mechanical methods are the primary methods in the cleaning industry.
介绍了高压水射流清洗方法和机械清洗方法的特点和清洗行业中的应用范围。
The performance of steam-jet vacuum pump was investigated by changing the ratio of secondary to primary throat area, relative position of the steam nozzle and the taper of the mixing section.
计算并分析了第二喉管与工作蒸汽喷嘴喉管面积比、喷嘴出口截面与混合段入口截面间的距离等几何参数对喷射器操作性能的影响。
As a high velocity air jet, it supports and straightens the primary air stream and thus prevents slagging on the furnace walls.
作为一股高速射流，它对一次风气流起支撑作用，以防止炉壁结渣现象的发生。
A Primary Factor Model (PFM) for jet engine fault diagnosis is presented, which is a kind of parameter diagnosis method based on the engine fault equation.
提出了发动机故障论断的主因子模型。这是一种基于故障方程的参数诊断方法。
A Primary Factor Model (PFM) for jet engine fault diagnosis is presented, which is a kind of parameter diagnosis method based on the engine fault equation.
提出了发动机故障论断的主因子模型。这是一种基于故障方程的参数诊断方法。
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