air-gap commutator是什么意思，air-gap commutator的翻译，air-gap commutator音标、读音、用法和例句

Warning: file_put_contents(): Only 0 of 6156 bytes written, possibly out of free disk space in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55
air-gap commutator是什么意思，air-gap commutator的翻译，air-gap commutator音标、读音、用法和例句_94生活常识网有道词典