Differential Set差速器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 corkscrew machine差动螺旋机构differential slope coefficient不同斜率系数differential-input amplifier[电] 微分输入放大器differential space-time code差分空时编码differential element of volume体积微元differential vectorcardiograph差动式心(电)向量图机differential steam calorimeter差示蒸汽量热器Differential thermal ananlysis差热分析differential quantum efficency微分量子效率differential-pressure method压差法