“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	plate making plate making process plate measurement device plate measuring machine plate meristem plate motion plate motion model plate mounting machine plate movement plate overlap method plate overlapping plate products Plate program plate punching device plate resonance sound absorber plate rolling plate scale plate singeing plates of middle thickness plate streaking plate tectonics plate tectonic theory plate theory plate theory equation plate triple junction

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