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 value微分值differential model微分模型differential force差动力differential hoist差动复滑车,差动式卷扬机differential fiber[化] 改性纤维; 差别纤维differential price差别价格differential check差动检测differential pulley差动滑车,差动滑轮differential twin w差动双线圈differential of arc微弧,弧元素