“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	Harbin-Dalian High Speed Railway Harbin Drama Theatre Harbin Electric Corporation Jiamusi Electric Machine Co.,Ltd Harbin Electric Machinery Factory harbinger Harbin Ice and Snow World Harbin Ice Training Base Harbin Institute of Technology Harbin Institute of Technology Library Harbin Jewish cemetery Harbin Library Harbin Municipal Archives Harbin National Forest Park Harbin Research Institute of Electrical Instrumentation Company Limited Harbin Research Institute of Forestry Machinery，National Forestry and Grassland Administration Harbin Sport University Harbin Wenmiao Harbin white rabbit Harbin Zhongyang Dajie Harbor Harbor and Ship Remains of Song and Yuan Dynasties at Quanzhou harbor chart harbor dredge survey harbor engineering survey harbor facilities

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