不用太專業的解說 , 最好是簡單易懂 , 因為還要翻成英文
- TCLv 51 decade agoFavorite Answer
The simple design of the AC motor results in extremely reliable, low maintenance operation. Unlike the DC motor, there are no brushes to replace. If run in the appropriate environment for its enclosure, the AC motor can expect to need new bearings after several years of operation. If the application is well designed, an AC motor may not need new bearings for more than a decade.
有興趣了解更多可以打comparison of AC motor,DC motorSource(s): 自己海外生活多年經驗
- lan san aLv 71 decade ago
Can you tell me why you ask this kind of question here ?
here is the area for discussing Japanese.