“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	Horqin Zuoyi Zhongqi Horrebow-Talcott method horror film horse horseback archery horse chestnut horse colic Horse Fair horse farm horse fetter horse galloping movement in opera performance horsehair worm Horsehead Nebula Horse Herding in Autumn Countryside Horse-hoof-shaped Zun horse racing horse racing turf horse-radish horseradish peroxidase Horse Riding Machine horse riding movements in Yuan Zaju opera horseshoe horseshoe bats horseshoe diffeomorphism horseshoe kidney

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