In the design of hydraulic system, the use of hydraulic components to simulate loading is an important part of the design. This pa-per explains the relief valve and throttle valve two kinds of loading mode and its application.%液压系统设计中,利用液压元件进行模拟加载是设计中一重要环节.该文讲解了溢流阀和节流阀两种加载方式及其应用.
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