“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	half-ring half sandwich complex half-sandwich complex half scale model half-segment half-shade device half-sheet half-side formulas half silhouette half-silvered half-silvered mirror half-sinusoid half-space Half-space Cooling Model half-space cooling model halfspan start systematic random sampling half-spinor half-spin representation half step half straight line half-strip half subtracter half-sum half-superficies and half-interior half-symmetric resonator

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