试题详情

煤矿用高低浓度甲烷传感器应以百分体积浓度表示测量值,采用数字显示,低浓度段分辨率应不低于(),高浓度段分辨率应不低于(),并应能表示显示值的正或负。

A0.1%CH4,0.1%CH4

B0.1%CH4,0.4%CH4

C0.01%CH4,0.1%CH4

D0.01%CH4,0.01%CH4