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单词 magneto bell
释义

Definition of magneto bell in English:

magneto bell

noun
  • An electric bell employing an electromagnet whose armature is permanently magnetized.

Origin

Late 19th century; earliest use found in Thomas Lockwood (1848–1927).

 
 

Definition of magneto bell in US English:

magneto bell

noun
  • An electric bell employing an electromagnet whose armature is permanently magnetized.

Origin

Late 19th century; earliest use found in Thomas Lockwood (1848–1927).

 
 
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更新时间:2024/12/23 20:14:51