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单词 updraft
释义

updraft

[ uhp-draft, -drahft ]
/ ˈʌpˌdræft, -ˌdrɑft /

noun

the movement upward of air or other gas.

Origin of updraft

late Middle English word dating back to 1400–50; see origin at up-, draft

Words nearby updraft

upcropping, upcycle, update, Updike, updo, updraft, updraught, updrift, upend, UPF, upfold
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for updraft

Scientific definitions for updraft

updraft
[ ŭpdrăft′ ]

An upward current of warm, moist air. With enough moisture, the current may visibly condense into a cumulus or cumulonimbus cloud. Compare downdraft.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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更新时间:2024/11/14 17:36:32