“track bed structure”的概念、定义、翻译、参考文献-科学参考

单词	track bed structure
释义	track bed structure Encyclopedia 工学道床结构释 track bed structure道床结构铺设于路基、桥梁或隧道结构之上，钢轨、轨枕之下及周边的碎石、卵石层或钢筋混凝土层。是轨道重要组成部分，轨道框架的基础。
随便看	Backlund transformation back mixing back mutation back-off backoff back-off system back-of-the-book index backpack dynamic planning backpacker tourism backpack of Lahu nationality backpaddle Back-Paschen effect backpitch backplan back plane backplane back pressure heat and power cogeneration back pressure test for gas well back pressure turbine backproject backprojection operator back propagation back-propagation back propagation algorithm back-propagation algorithm

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