电缆卷筒设置了可逆转机构，避免卷筒逆转而折断弹簧。

Cable reel set up institutions that can be reversed to avoid the broken spring roll reversal.

youdao

电缆卷筒设置了可逆转机构，避免卷筒逆转而折断弹簧。

Cable reel set up institutions that can be reversed to avoid the broken spring roll reversal.

youdao