单项选择题
A.20min B.20s C.10min D.10s
A.20min B.30s C.60min D.可调
A.补偿水电磁阀断续通电,操作水电磁阀断电 B.补偿水电磁阀断电,操作水电磁阀断续通电 C.补偿水电磁阀通电,操作水电磁阀通电 D.补偿水电磁阀断电,操作水电磁阀断电
A.WT200水分传感器 B.EPC-400型控制箱 C.电机起动器 D.分油机活动底盘
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