作用原理
此操作的结果是将驱动流体和夹带（吸入）流体混合起来，混合流体的速度降低且第二个喷嘴中的压力增加。
这一原理的实际应用需要一个简单仪器，它基本上仅包含 3 个主要部件：
- 动力喷嘴
- 喷雾器
- 头
喷射器系统的设计简单，但非常可靠，并且需要的维护量非常低，因为它们在工作时不需要移动部件。
1= motive nozzle, 2 = diffuser, 3 = head, A = motive medium inlet connection, B = suction manifold, C = pressure manifold
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