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单词
ion propulsion
释义
WordReference Random House Unabridged Dictionary of American English © 2024
i
′
on propul′sion,
Rocketry
a projected type of propulsion for vehicles in outer space, the exhaust consisting of positive ions and negative electrons repelled from the vehicle by electrostatic forces, resulting in a very high exhaust velocity.
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closeout
close position
close punctuation
close quarters
close quote
closer
close reach
close-reefed
close season
close shave
close shot
closest
close stitch
close-stool
closet
closet drama
closeted
closetful
closet queen
close-up
closeup
close with
closing
closing costs
closing error
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更新时间:2025/11/19 12:57:20