“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	monotonical monotonically decreasing function monotonically decreasing sequence monotonically equivalent monotonically equivalent cascades monotonically increasing function monotonically increasing sequence monotonic coefficient monotonic family monotonic function monotonicity monotonicity of a function monotonicity of a norm monotonicity-preserving difference monotonicity preserving difference scheme monotonicity-preserving difference scheme monotonicity theorem monotonic law monotonic mapping monotonic matrix monotonic model monotonic model of the first kind monotonic model of the second kind monotonic reasoning monotonic sequence

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