GB/T 4988-2016船舶和近海装置用电工产品额定频率、额定电压和额定电流国家标准
英文:Electric products for ships and offshore units—Ratings of frequency,voltage and current GB/T 4988-2016介绍: 国家标准《船舶和近海装...
英文:Electric products for ships and offshore units—Ratings of frequency,voltage and current GB/T 4988-2016介绍: 国家标准《船舶和近海装...