介绍了摊铺机行驶控制系统的基本要求，以单边行驶回路为例探讨了其工作原理； 根据摊铺机对行驶速度的要求，分析了恒速控制技术，探讨了行驶系统控制方式。
The principle of phase lock loop and its application in the motor power-measuring system are introduced, furthermore the design and analysis of the circuit for constant speed control are provided.
介绍了摊铺机行驶控制系统的基本要求，以单边行驶回路为例探讨了其工作原理； 根据摊铺机对行驶速度的要求，分析了恒速控制技术，探讨了行驶系统控制方式。
The principle of phase lock loop and its application in the motor power-measuring system are introduced, furthermore the design and analysis of the circuit for constant speed control are provided.
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