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 dyeing差异染色differential column微分塔differential vector微分向量differential roller差动轧辊differential income差额收益differential market层级市场结构differential voting差额投票differential bridge差动电桥,差接电桥differential gasket差速器衬垫differential backupn.[计]差异备份