A summer job developing railway signallingsystems 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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Problems in signallingsystems which tell the body when to stop eating may be partly responsible, said a UK nutrition expert.
英国营养专家认为，告知身体何时停止吃饭的信号系统出现问题可能是造成这一问题的部分原因。
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Siemens has been awarded the contracts of supplying signallingsystems, train control and propulsion system for Guang-Fo line, China's first intercity mass transit line.