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。
A.0.1%CH4,0.1%CH4 B.0.1%CH4,0.4%CH4 C.0.01%CH4,0.1%CH4 D.0.01%CH4,0.01%CH4正确答案C
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。
A.0.1%CH4,0.1%CH4 B.0.1%CH4,0.4%CH4 C.0.01%CH4,0.1%CH4 D.0.01%CH4,0.01%CH4正确答案C