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signalling systems

网络信号系统

signalling systems

signalling systems

signalling systems

信号系统

中华之星_新浪博客 ... Operations rules 操作管理 Signalling systems 信号系统 Marketing 市场营销 ...

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A summer job developing railway signalling systems had given him a taste for working in the real world .

通过一个开发铁路信号系统的暑期工作，Ted 初尝了为现实世界工作的滋味。

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Awarded by the customer Guangdong Guangfo Inter -City Co. , Ltd, the contract of the signalling systems is worth 23 million Euros.

与业主广东广佛城际轨道交通有限公司签订的信号系统合同，价值 2300万欧元。

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Study on Quantitative Evaluation Methods for Safety of Railway Signalling Systems

铁路信号系统安全性定量评估方法

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Electric signalling systems for railroads

铁路用电气信号装置

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