“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	pollution from tailings pollution halo hypothesis pollution haven hypothesis pollution indicator plant pollution indicator species pollution-intensive industry Pollution Load pollution of agricultural inputs pollution of motor vehicle exhaust gases pollution of natural water pollution prevention and control of key water basins pollution prevention law Pollution Probe Foundation，Canada pollution-resisting species of tree pollution rights trading market pollutions emitted from fossil-fired power plant pollution source pollution source census pollution source monitoring of fisheries waters pollution source of water body Pollution Sources pollution sources of chemical industry pollution surface discharge pollution tax pollution treatment of non-point air pollution sources

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