Inverse - time characteristic equations for overcurrent relays 过流继电器反向时间特性方程式
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The verification of particle size distribution of coal slime in accordance with rosin - rammlar equation 拉姆勒粒度特性方程式的验证
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Abstract : the structure and the working principle of electronic - hydraulicvalve are analysed and the p - i ( pressure - control current ) characteristic equation of electronic - hydraulic valve is derived 文摘:通过对电液阀结构与工作原理的分析,导出了电液阀的p ? i (压力?控制电流)特性方程式。