Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/512ddc70304a23304c2fa8bc722efd48.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 main cross-cut例句_main cross-cut英汉例句_main cross-cut双解例句_2020年的事情英文词典
The cross- section of the two side columns is cut down partly by two grades and the diminished parts act as the area where the main magnetization occurs. 在铁心的两个边柱上分别设置了两级减小截面部分，这两个部分作为铁心磁化区，磁化作用主要发生在该区域。