differential via差分过孔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 photoelectric converter差分式光电转换器differential potentiometric titrator示差电位滴定仪differential contact-type air plug差动接触式气动塞规differential diagnosis and treatment辨证论治differential coefficient of material材料差异系数differential operator with any order任意阶微分算子differential blood-cell calculator血细胞分类计数器Differential Ballistic Wind Computer差动弹道风计算机differential equilibrium profit rate差别利润率differential thermal analysis system差热分析系统