“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	distal pair of points distal pole distal protection device distal-proximal points combination，distal-proximal points association distal stimulus distal tubule distamycin distance distance and angle measurement structure distance axioms distance between casing and bushing distance between centers of tracks distance between distributions distance between tubing and bushing distance circle distance constant distance control distance correction of Gauss projection distance correlation analysis distance determination distance difference structure distance dispersion distance education distance education for teacher distance estimator

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