ventilating duct spacer是什么意思，ventilating duct spacer的翻译，ventilating duct spacer音标、读音、用法和例句

Warning: file_put_contents(): Only 0 of 4886 bytes written, possibly out of free disk space in /www/wwwroot/ppbbbu/oiqp.com/index.php on line 55
ventilating duct spacer是什么意思，ventilating duct spacer的翻译，ventilating duct spacer音标、读音、用法和例句_奇葩剧汉英词典