单项选择题
A.30min B.40min C.50min D.60min
减速机运行油温应不超过()A.80℃B.70℃C.60℃D.50℃
单项选择题减速机运行油温应不超过()
碎煤机运行中无明显振动,振动值不应超过()A.0.4mmB.0.3mmC.0.2mmD.0.1mm
单项选择题碎煤机运行中无明显振动,振动值不应超过()
A.0.4mm B.0.3mm C.0.2mm D.0.1mm
输煤系统所安装的落煤管对水平面的倾角应不小于()A.45°B.55°C.60°D.75°
单项选择题输煤系统所安装的落煤管对水平面的倾角应不小于()
A.45° B.55° C.60° D.75°