Warning: file_put_contents(): Only 0 of 5114 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/52065.com/index.php on line 55 magnetic lifter例句_magnetic lifter英汉例句_magnetic lifter双解例句_伍贰汉英词典
According to the characteristic of transfer of magnetism and mechanical force, rare-earth permanent magnetic lifter was studied and designed. 利用磁与机械力的转换特性，进行了稀土永磁起重吊的研究和设计。