“protection area of railway safety”的概念、定义、翻译、参考文献-科学参考

单词	protection area of railway safety
释义	protection area of railway safety Encyclopedia 工学增补条目释 protection area of railway safety铁路安全保护区为防止外部因素对铁路列车运行的干扰，减少铁路运输安全隐患，在铁路线路两侧一定范围内依法对影响铁路运输安全的行为进行限制而设置的特定的区域。各国铁路大多都设立安全保护区。
随便看	SHE She sheaf sheaf cohomology sheaf homomorphism sheafication sheaf isomorphism sheaf model sheaf of Abelian groups sheaf of circles sheaf of complexes sheaf of curves sheaf of differential operators sheaf of differentials sheaf of finite type sheaf of functions sheaf of germs sheaf of germs of analytic fanction sheaf of germs of divisors sheaf of germs of functions sheaf of groups sheaf of hyperfunctions sheaf of ideals sheaf of lines sheaf of meromorphic functions

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