“ballast cleaning machinery”的概念、定义、翻译、参考文献-科学参考

单词	ballast cleaning machinery
释义	ballast cleaning machinery Encyclopedia 工学铁路养路机械释 ballast cleaning machinery道砟清筛机械筛除碎石道床中的污土、碎砟及其他脏污物的轨道作业机械。简称清筛机。
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