常見例句雙語例句Rotating magnetic field is not caused by mechanical methods, but in AC pass in a few of the electromagnet, the nature of its magnetic cycle of change can be seen as rotating magnetic field.轉(zhuǎn)動(dòng)磁場竝不是用機(jī)械方法造成的，而是以交流電通於數(shù)對電磁鉄中，使其磁極性質(zhì)循環(huán)改變，可看作爲(wèi)轉(zhuǎn)動(dòng)磁場。blog.sina.com.cn 返回 ac electromagnet