久久精品人成免费_国产精品久久久久久久白皙女_一级片播放_日韩欧美在线免费_亚洲AV无码精品色午夜果冻不卡_成人高潮免费视频

我測(cè)量了6臺(tái)設(shè)備的電動(dòng)機(jī)空載電流
電動(dòng)機(jī)功率           空載電流              
1.6KW                1.7A        
3.7KW                                3.3A
3.7KW                                3.0A
3.7KW                                3.1A
7.5KW                                4.9A
                                            8.1A
想請(qǐng)問(wèn)如何根據(jù)空載電流知道該電動(dòng)機(jī)的功率  謝謝

不錯(cuò)！學(xué)習(xí)了頂