“ballast track”的概念、定义、翻译、参考文献-科学参考

单词	ballast track
释义	ballast track Encyclopedia 工学［轨道型式］释 ballast track有砟轨道由钢轨、扣件、轨枕和散粒体碎石（或卵石、砂）道床、道岔及轨道加强设备组成的铁路轨道。是铁路上应用最早、使用范围最广的轨道结构形式，有较丰富的使用经验，成套的线路大修、维修机械和施工工艺。
随便看	tactical air navigation system tactical and tactical cooperation tactical and technical characteristics of naval nuclear power plant tactical competitive intelligence tactical configuration tactical flight management system，TFMS tactical geography tactical intelligence tactical missle warhead tactical nuclear weapon tactical psychological warfare tactical strike tactical system tacticity tacticity; stereo-regularity tactic polymer tactic polymerization tactics tactics for psychological operations tactile cilium tactile communication tactile corpuscle tactile elevation tactile ground surface indicator tactile hair

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