备用发电机组的发动机
standby generator set engine
事故备用发电机
accident spare generator stop
推荐的天然气备用发电机组预防性保养
natural gas standby generator preventive maintenance recommendation
小型备用发电机组
standby package generator set
厂用电备用电源
plant standby power supply
风力发电机发电
wind energy power generator
备用发电容量
reserve generation capacity
车用发电机
generator applied to motorvehicle