“back check”的概念、定义、翻译、参考文献-科学参考

单词	back check
释义	back check [`bak ´chek] ^{DESIGN ENGINEERING} In a hydraulic door closer, a mechanism that slows the speed with which a door may be opened.
随便看	separable extension separable polynomial separable space separate separated aggregate separated ammunition separated-function synchrotron separated sets separate loading ammunition separately excited separate sewage system separating calorimeter separating power separating transcendence base separation separation axioms separation disk separation energy separation factor separation filter separation layer separation negatives separation of variables separation theorem separative work unit

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