[电] 合闸额定电流 current rating: 电流额定值; 额定电流rating current: 额定电流switching current: 合闸电流; 开关电流contact current carrying rating: 触点额定载流容量; 继电器触点额定通电容量contact current closing rating: 触点额定闭合电流下载手机词典可随时随地查词查翻译