“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	urban system scale structure in the administration area of city urban systems engineering urban system spatial pattern in the administration area of city urban system theory urban thermal environment urban topographic survey urban traffic urban traffic construction management system urban traffic management platform urban traffic management system urban traffic system urban traffic tunnel fire urban transportation urban transportation demand management urban transportation development policy urban transportation economy urban transportation layout urban transportation planning urban transportation problems in China urban transportation structure urban transportation supply management urban transportation system organization urban transport infrastructure Urban Transport of China urban TV drama

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