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单词 pebble bed
释义

Definition of pebble bed in English:

pebble bed

noun
  • 1Geology a deposit of conglomerate containing pebbles, especially one from which they readily work loose with weathering.

  • 2Nuclear Physics a nuclear reactor in which the fuel elements are in the form of pellets, often with a coating of moderator; usually attributive.

Origin

Mid 19th century; earliest use found in Joseph Prestwich (1812–1896), geologist.

Definition of pebble bed in US English:

pebble bed

noun
  • 1Geology a deposit of conglomerate containing pebbles, especially one from which they readily work loose with weathering.

  • 2Nuclear Physics a nuclear reactor in which the fuel elements are in the form of pellets, often with a coating of moderator; usually attributive.

Origin

Mid 19th century; earliest use found in Joseph Prestwich (1812–1896), geologist.

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更新时间:2025/7/5 16:48:22