This paper describes the idle speed control stepper motor type composition, Stepper Motor Idle Control Valve on the main structure, Idle Speed Control Stepper Motor Control Principle of the device.
主要介绍步进电机式怠速控制装置的组成，步进电机式怠速控制阀的主要结构及步进电机式怠速控制装置的控制原理。
The structure composition, main features and applicable range of KE type distributor valves are described, and the functional principle of the distributor valve is explained briefly.
介绍了KE型分配阀的结构组成、主要特点和适用范围，并对该分配阀的作用原理作了简要说明。
Structure, composition, properties and method of synthesis of phosphoric acid ester type surfactant were briefly presented.
简要介绍了磷酸酯盐型表面活性剂的结构组成和特性；
应用推荐