“double swing door”的概念、定义、翻译、参考文献-科学参考

单词	double swing door
释义	double swing door Encyclopedia 工学门释 double swing door弹簧门一种水平开启的门，与普通平开门一样其转动轴位于门侧边，所不同的是弹簧门采用了弹簧铰链（合页）或门顶弹簧、地弹簧代替普通铰链，使得门扇可顺时针和逆时针双向旋转开启，且能自动关闭。
随便看	changes of geographical names change-wheel garage of straddle type monorail Chang Fa Changfeng Park Changfeng Xian Chang Fuyuan Changgang Shuiku Changgan Lane Changgan Song Changgan Temple Changge Shi Changgeuk Chang Guangxi Changgunbong Changguogou Changha ChanghaiXian Changhe-2 system Changheba Hydropower Station Changhe Gate Changhe Poetry of Tungwen College Chang Hong Changhong Changhua Jiang Changhu Hu

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