“railway tunnel maintenance”的概念、定义、翻译、参考文献-科学参考

单词	railway tunnel maintenance
释义	railway tunnel maintenance Encyclopedia 工学﹝铁路工务养护维修﹞释 railway tunnel maintenance铁路隧道养护维修对铁路隧道主要结构和附属设施（拱墙结构、隧底结构、防排水设施、附属洞室、洞室门、洞门结构等）进行的检查、养护、维修和大修。
随便看	layered transaction layered ultrathin coherent structure layered ultrathin coherent structure LUCS layer extremal group layer G bauxite layering layering and zonation of complicated fault-block oilfield layer management layer material layer nature layer optics layer plough layer production layer production in cage system layer protectionanalysis layer series of development layer structure layerwise summation method La Yesca Hydropower Station laying laying and insulation of pipe in hot water supply system laying head laying-hen housing laying house laying method of distribution cable

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