“railway maintenance operation skylight”的概念、定义、翻译、参考文献-科学参考

单词	railway maintenance operation skylight
释义	railway maintenance operation skylight Encyclopedia 工学增补条目释 railway maintenance operation skylight铁路维修作业天窗在列车运行图中，为线路、通信信号、牵引供电等设施设备维修而停止列车运行所预留的时间。
随便看	tangent circles tangent coefficient tangent condition tangent cone tangent curve tangent cut locus tangent cutpoint tangent cylinder tangent deformation tangent developable tangent dimension tangent elevation tangent externally tangent field tangent flow tangent formula tangent frame tangent function tangent hyperbolas method tangent hyperplane tangential tangential acceleration tangential angle tangential approximation tangential arc

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