发电机组发电机手册
electric set generator manual
发电机组发电机维修手册
electric set generator service manual
备用发电机组的发动机
standby generator set engine
推荐的天然气备用发电机组预防性保养
natural gas standby generator preventive maintenance recommendation
中小型发电机
medium and small size generator
medium and small generators
medium and small-sized generators
大型发电机组
large generating unit
large generating units
large size generator transformer unit
high capacity AC genrator set
Bailashui
大型机组电机转子
Rotor system of large-scale unit machine
厂用电备用电源
plant standby power supply
事故备用发电机
accident spare generator stop