“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	Shanghai 65m Tianma Radio Telescope Shanghai Academy of Fine Arts "Tianma Meeting" Shanghai Academy of Spaceflight Technology Shanghai Aerospace Enthusiast's Center Shanghai Animation Film Studio ShangHai Art Drama Society Shanghai Artistic Drama Society Shanghai Art Museum Shanghai Art Research Institute Shanghai Astronomical Observatory Shanghai Astronomy Museum Shanghai Auto Museum Shanghai A & V Electronic Literature and Art Publishing House Shanghai Ballet Shanghai Bank Museum Shanghai Baoshan Steel Enterprise Shanghai Beach Shanghai Beigan Shan Niaolei Baohuqu Shanghai Bei He Meng Shanghai Biennial Shanghai Book Industry Association Shanghai Book Publishing Chamber of Commerce Shanghai Bookstore Shanghai Botanical Garden Shanghai broadcast forum

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