“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	free field path free field sensitivity free-field sensitivity free flagellum free flight free floating macrophyte free flow ETC Free fluid free fluid index log free-flying telescope free-form curve free-form deformation freeform optics free-form surface free-free absorption free-free emission free free transition free-free transition free functor free gas free generator free geometry motion planning free group free group action free group factor

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