He carried a radio so he could call commercial airline pilots to relay messages in case of emergency, but he discovered that it wasn't working.

他随身携带了无线电设备，以便在紧急情况下呼叫经过这里的飞行员，但最终发现设备根本不起做用。

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Method chaining USES return values from methods to relay instruction context, which in this case is the object instance making the first method invocation.

方法链接使用方法的返回值来中转指令上下文，在这种情况下是进行第一个方法调用的对象实例。

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Control case with the relay of PLC replacing old equipment, make produce renew, have given some replacing step and method.

用PLC替代老设备的继电器控制箱，使产品更新换代。给出了替代的一些步骤和方法。

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Clearly, and as is the case with iOS and Android, all of these operating systems can relay the same information from the same people.

ENGADGET: Switched On: Battling for the bronze

Former British sprinter and hurdler Kriss Akabusi tried to persuade Collins to stay on in case there was a chance of him being allowed to run in the relay.

BBC: London Olympics diary: Quirky moments around the Games