求翻译：双磁控“声闸”隔声门就是门和门框都采用双台阶隔声，并安装永磁密封条，既让门易开关且不影响隔声性能，其次我们在门轴上也作了特殊处理，隔声门相对较重，我们除了加固连接外，我们还安装上轴承让门可以180°自由轻巧地开关，同时保证隔声性能，并且不磨损门轴，保证使用十年以上。是什么意思？

Double magnetic controlled "sound gate" isolation glottis is door and door frames are used double stepped isolation sound, and installation magnet seal article, both let door easy switch and not effect isolation sound performance, second we in door axis Shang also for has special processing, isolation glottis relative more heavy, we apart from reinforcement connection outside, we also installation Shang bearing let door can 180 ° free light to switch, while guarantee isolation sound performance, and not wear door axis, guarantee using ten years above.