“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	traffic impediment warning systems traffic incident detection system traffic indication traffic information collecting traffic information collection system traffic information dissemination traffic information security traffic injury Traffic Insurance and Compensation traffic intensity traffic island traffic island greening traffic landscape traffic land use traffic level of service traffic light traffic line traffic line marking traffic maintenance of equipment traffic management traffic management information system(TMIS) traffic map traffic mark traffic marking traffic meteorological disaster

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