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本文简述了电液比例控制技术的基本原理及其特点，着重介绍了电液比例控制技术在离心铸管机上的应用，并提出了进一步扩大应用该项新技术的设想
This paper describes the basic principle and characteristics of the electro-hydraulic proportional control technology, emphatically introduces the application of the electro-hydraulic proportional control technology in the centrifugal pipe casting machine, and puts forward the idea of further expanding the application of the new technology