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单词 bel
释义

bel1 /bel/

noun
  1. A unit used to express a relationship between two power levels, the number of bels being the logarithm to the base 10 of the ratio between the two levels
  2. Cf decibel
ORIGIN: Alexander Graham Bell (1847–1922), inventor of the telephone

bael, bel or bhel /bel/

noun
  1. A thorny Indian rutaceous tree (Aegle marmelos)
  2. Its edible fruit, the Bengal quince
ORIGIN: Hindi
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更新时间:2024/12/23 9:55:35