This calculation method is suitable for common valve-in-head engines.
该计算方法对一般顶置气门发动机均适用。
Furthermore, linking with practical experience, to explore the common process of ultrasonic cleaning and the rational choice to the technological parameters of ultrasonic cleaning for valve parts.
结合实际经验，探讨了阀类零件超声清洗的一般流程和超声清洗工艺技术参数的合理选择。
Two common types are the fixed orifice, or the orifice tube, and the thermostatic expansion valve.
两种常见形式是固定节流阀式或节流管式，以及节流膨胀阀。
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