“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	modified form modified Fourier hyperfunction modified frequency modulation modified frequency modulation, MFM modified function modified gear/profile modified gear modified German mounting modified gradient projection method modified gravitationed theory modified gravity modified horseshoe mounting modified Hubble profile modified isochronal test modified isochrone method modified isothermal sphere modified Julian date modified Korte-weg-de Vries equation modified Lax-Phillips conjecture modified lignin adsorbent modified logarithmic integral modified lottery problem modified Mathieu equation modified Mathieu function modified Mathieu function of the first kind modified Mathieu function of the second kind

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