“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	Official Cloth Rule ‘Chi’ official communications between the parallel ministries or administrative offices official communication to the superior official deed Official Denunciation of Sun Quan of the State Wu official diplomatic reports official dispatch official document official document approval official documentary form official document category official document consultation official document distribution official document expression official document from the superior official document handling advice official document handling notes official document language official document layout and expression rules official document literary form official document management official document materials official document numerical expression official document paper official document processing

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