Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/d3844c81ac0358dcd06918b1ebb4a1f9.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 balun英英字典_balun剑桥英语解释_balun柯林斯英文解释_果味酸柯林斯词典
1. N a device for coupling two electrical circuit elements, such as an aerial and its feeder cable, where one is balanced and the other is unbalanced 平衡不平衡變換器[electronics]