以下为句子列表：
英文: A radio antenna converts electric currents and voltages created by a transmitter into electromagnetic waves that radiate into space.
中文: 无线电天线会把发射器产生的电流与电压转变成电磁波，然后以辐射方式在空中传播。
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英文: A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
中文: 核衰变产生的微粒或电磁波放射物的原子或分子由于核衰变放出的一束微粒或电磁波
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英文: All bodies, no matter what their temperature, give off radiation in the form of electromagnetic waves.
中文: 一切物体，不论其温度高低，均要放出电磁波形式的辐射。
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英文: In fact, light and other electromagnetic waves slow down when going through matter (unless it's opaque and they can't go at all).
中文: 实际上，光和其它电磁波在穿越物质时速度会减慢（除非是不透明物体，那就完全走不动了）。
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英文: Static electricity is caused by lightning or by certain electrical machines that give off electromagnetic waves.
中文: 静电是由闪电或某些产生电磁波的电机产生的。
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