“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	fraction collector fraction expression fraction field fraction in lowest terms fraction of critical speed for grinding mill fraction of integers fraction of soil heavy metal fraction stroke fractions连分式逼近 fraction unit fractographic analysis fractography fractometer fracton fractran fracture fracture aperture fracture assessment of nonmetallic structures fracture behavior of ceramics fracture control of steel pipe fracture criterion fracture density fractured reservoir fractured rock masses fracture log

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