subtracts例句

The positive - going signal subtracts from the forward bias of the lower transistor.
正向信号则使它的正向偏压减弱.

Significant comorbidity such as ischemic heart disease and stroke subtracts 2 points.
像缺血性心脏病和中风等明显合并症者也要减去2分.

A businessman usually subtracts his costs from his gross profits.
通常商人从毛利中减去他的成本.