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简述了比值计量系统的原理及其几种典型的结构形式；介绍了计量泵作为执行元件在控制系统中的应用，分析了该系统的输出特性；并给出了高压过程下的系统输出特性的校正方法。
The principle of the ratio measurement system and several typical structural forms are briefly introduced. The application of the metering pump as the actuator in the control system is introduced. The output characteristics of the system are analyzed. The output characteristics of the system under high pressure Correction method.