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单词 near field
释义

Definition of near field in English:

near field

noun nɪə ˈfiːld
Physics

  • The region close to a radiating source (especially of sound or radio waves), where the variation of the field vector with distance differs from that at large distances.

Origin

1930s; earliest use found in Wireless Engineer. From near + field.

Definition of near field in US English:

near field

nounnɪə ˈfiːld
Physics

  • The region close to a radiating source (especially of sound or radio waves), where the variation of the field vector with distance differs from that at large distances.

Origin

1930s; earliest use found in Wireless Engineer. From near + field.
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更新时间：2025/1/31 6:10:33