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downdraft    音标拼音: [d'ɑʊndr,æft]

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  • Updraft and downdraft | Air Movement, Atmospheric Pressure Wind . . .
    In a mature storm, updrafts are present alongside downdrafts caused by cooling and by falling precipitation These downdrafts, originating at high levels, contain cold, dense air that spreads out at the ground as a cold air wedge
  • DOWNDRAFT Definition Meaning - Merriam-Webster
    The meaning of DOWNDRAFT is a downward current of gas (such as air during a thunderstorm) How to use downdraft in a sentence
  • Vertical draft - Wikipedia
    Vertical drafts, known as updrafts or downdrafts, are localized regions of warm or cool air that move vertically A mass of warm air will typically be less dense than the surrounding region, and so will rise until it reaches air that is either warmer or less dense than itself
  • What Is a Downdraft Range or Cooktop? - KitchenAid
    Ideal for flush mount cooktops and slide-in ranges, downdraft range vents can retract to become level with your cooking surface when not in use No matter which model you choose, KitchenAid ® retractable downdraft systems are designed to help clear the air so you can focus on your next meal
  • Downdraft - NOAAs National Weather Service - Glossary
    Downdraft (Abbrev DWNDFT) - A small-scale column of air that rapidly sinks toward the ground, usually accompanied by precipitation as in a shower or thunderstorm
  • Updrafts and Downdrafts - NASA
    Downdrafts occur on the downwind side of a hill or mountain Downdrafts are often found in the vicinity of strong thunderstorms A micro-burst is a highly localized downdraft of air Micro-bursts near airports have been blamed for airplane crashes in recent years
  • Downdraft - Spragues Backhoe
    A downdraft is a strong, downward-moving current of air that occurs during severe weather events, particularly in thunderstorms This phenomenon can cause rapid changes in wind speed and direction, posing risks to structures, vehicles, and individuals in its path
  • Downdraft - definition of downdraft by The Free Dictionary
    A downdraft is defined as a current of air common in cumuliform clouds and poses risks to light aircraft and helicopters, especially those flying near the ground
  • Updrafts Downdrafts: rising and sinking air - University of Illinois . . .
    In the same way, air that is cooler than its environment tends to sink as long as it can stay cooler than its surroundings The upward moving air in a thunderstorm is known as the updraft, while downward moving air is the downdraft
  • Downdraft | meteorology | Britannica
    downdraft, in meteorology, upward-moving and downward-moving air currents, respectively, that are due to several causes Local daytime heating of the ground causes surface air to become much warmer than the air above, and, because warmer air is less dense, it rises and is replaced by…





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