Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/ebff94d78338f5a60b4fe6cfdfee3a57.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 soft iron core例句_soft iron core英汉例句_soft iron core双解例句_2020年的事情英文词典
The so-called iron-core inductor, inductance refers to media for the electrical circuit components of soft iron, steel and other iron core inductor coil media. 所謂鉄心電感，泛指電感元件磁路介質爲電工軟鉄、矽鋼片等鉄心介質的電感線圈。