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单词 jet stream
释义

WordReference Random House Learner's Dictionary of American English © 2024
ˈjet ˌstream, n. [countable* usually singular;
usually: the + ~]
  1. Meteorologystrong, usually westerly winds in a relatively narrow and shallow stream in the upper atmosphere of the earth.

WordReference Random House Unabridged Dictionary of American English © 2024
jet′ stream′, 
    1. Meteorologystrong, generally westerly winds concentrated in a relatively narrow and shallow stream in the upper troposphere of the earth.
    2. Astronomysimilar strong winds in the atmosphere of another planet:jet streams on Jupiter.
    3. Aeronautics, Rocketrythe exhaust of a jet or rocket engine.
    • 1945–50

Collins Concise English Dictionary © HarperCollins Publishers::
jet stream n
  1. a narrow belt of high-altitude winds (about 12 000 metres high) moving east at high speeds and having an important effect on frontogenesis
  2. the jet of exhaust gases produced by a gas turbine, rocket motor, etc
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更新时间：2025/2/23 13:12:06