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单词 main wheel
释义

Definition of main wheel in English:

main wheel

noun
  • 1The first, or driving, wheel in a series of gears, especially in a clock or watch.

  • 2Aeronautics each of the wheels which are located near the centre of an aeroplane and bear most of its weight when it is on the ground, as distinguished from a nose or tail wheel.

Origin

Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker.

Definition of main wheel in US English:

main wheel

noun
  • 1The first, or driving, wheel in a series of gears, especially in a clock or watch.

  • 2Aeronautics each of the wheels which are located near the centre of an aeroplane and bear most of its weight when it is on the ground, as distinguished from a nose or tail wheel.

Origin

Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker.

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更新时间:2025/7/5 8:04:51