differential FH差分跳频differentialadj.差别的；特定的；微分的n.差别；工资差额；差动齿轮；[数]微分differential windlass差动滑车,差动卷扬机differential floatage优先浮选differential arc lamp差接弧光灯differential of a arc微弧differential stimulus分化刺激differential earnings差额收益differential features特征differential repeater差动帮电机differential ablation差异消融differential mobility微分迁移率