differentials差价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 intake差动式进水口differential U tube差示U型管differential length微分长度differential tackle差动滑车differential meters[化] 差压计differential effect微分效应differential schema差分图解differential sianal微分信号differential proces微分过程differential output差分输出