n. 电磁波

Hertzian waves的用法和样例:

例句

用作名词(n.)
  1. Every body radiates heat in the form of electromagnetic waves.每一物体都以电磁波的形式辐射热。
  2. Electromagnetic waves travel at the same eed as light.电磁波传送的速度和光速相同。

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show off to good advantage
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stuck-up
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wyrall