Runners in a relay race pass a stick in one direction.

接力赛的选手向一个方向传递接力棒。

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Their short-distance radios relay information to each other in a web and pass it to a satellite unit at the edge that feeds into the National Interagency Fire Center’s network.

网点的短距离无线电能在一个网络内彼此中转信息，然后把它传送给设在森林边缘的卫星装置，再由卫星装置发送到美国国家跨部会消防中心的网络。

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These sensors only need very few energies, pass the data by the relay way through the radio wave from a sensor to another, therefore they communicate with an extremely high efficiency.

这些传感器只需很少的能量，以接力的方式通过无线电波将数据从一个传感器传到另一个传感器，所以它们的通信效率非常高。

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Each radio in the network becomes a relay through which communications can pass, circumventing geographical or man-made obstacles.

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It would make more sense for the rover to hand the whole file over to a lander, which could pass it in chunks to orbiting relay satellites for transmission home.

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The Bahamas team of Chris Brown, Demetrius Pinder, Michael Mathieu and Ramon Miller won the latter event, rallying to pass the U.S. squad, which has had a stranglehold on this relay for decades, on the final lap.

CNN: August 10, 2012 -- Updated 2336 GMT (0736 HKT)