speed characteristic curve meaning in English

速度特性曲线
速率特性曲线

Based on geometry alignment data and speed difference , by stat . formula are established about the relation between downgrade , curve radius and deflection and speed change . then method to establish speed characteristic curve is present
依据样本路段的几何线形数据和速度变化特征，利用统计手段得出了纵坡坡度、平曲线半径和偏角等线形指标与速度变化之间的关系公式，根据这些公式，给出了一定线形组合求解速度特征曲线的方法。
Based on the torque - speed characteristic curve of induction motors , analyses were done on changes in slip with an variation in frequency when an induction motor drives different kinds of loads , including those with constant torque , constant - maximum torque , variable torque ( except fans and pumps ) and constant power , as well as fans and pumps , the formulas to calculate the slip and the speed under different frequencies and loads were presented
摘要以异步电动机机械特性曲线为基础，分析了变频调速异步电动机在拖动恒转矩负载、恒最大转矩负载、变转矩（非风机和泵类）负载、恒功率负载以及风机和泵类负载时，转差率随频率变化的规律。