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单词 polarized plug
释义

Definition of polarized plug in English:

polarized plug

noun
North American
  • A two-bladed plug with one blade larger than the other, so that it can only be inserted into the socket one way round.

Origin

1930s; earliest use found in Decatur (Illinois) Herald.

Definition of polarized plug in US English:

polarized plug

noun
North American
  • A two-bladed plug with one blade larger than the other, so that it can only be inserted into the socket one way round.

Origin

1930s; earliest use found in Decatur (Illinois) Herald.

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更新时间:2025/6/20 7:42:13