You may also want to a battery - powered CB or other two - way radio.

如有可能,你还应当准备电池供电的收发报机和无线对讲机.

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Motorcycle headset for two - way radio.

骑摩托车可用的对讲机耳机.

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Two - way radio communication throughout the world to the brain was possible by the late 1950 s.

双向 的无线电波传输到大脑成为可能在整个世界,是在20世纪50年代.

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