発音 (2)
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/dɪˈfɹækʃən/
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dɪˈfɹækʃən
名詞
The bending of a wave around an obstacle.
用法- 可算
- 不可算
The breaking up of an electromagnetic wave as it passes a geometric structure (e.g. a slit), followed by reconstruction of the wave by interference.
用法- 可算
- 不可算
名詞
when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands