减法

The difference is found by subtraction.

用减法得出差额。

In this stage, the subtractor rejects the 5V common-mode signal from the voltage reference.

段，减法器抵消了电压参考的5V共模信号。

Additive mixture ofcolortrichroism is red,green and blue,subtractive mixture,as its complementary colors,is cyan,ma genta and yellow,thatis the dyestuff trichroism.

颜色的加法混三原色为红、绿、蓝色,减法混的三原色则是它们的补色,即:青、品红黄色,染料的三原色是后者。