| 释义 |
Definition of downdraught in English: downdraught(US downdraft) nounˈdaʊndrɑːftˈdoundraft A downward current of air. 向下气流；下向通风 the helicopter was caught in a strong downdraught Example sentencesExamples - While the chopper hovered above Coire Na Ciste, bouncing violently in the downdrafts, we looked on as the body was hooked to a cable by rescuers and reeled up into the aircraft.
- Be at least 1000 feet clear of terrain or obstacles; 2000 feet when over mountainous terrain, where downdrafts and turbulence could become factors.
- Three categories of winds have been defined, as well: downdrafts, downbursts (also called macrobursts) and microbursts.
- If downdrafts become localized, they can become violent downward bursts of wind that can overpower or even destroy any aircraft.
- If the winds are strong, beware of eddy currents coming off nearby trees, and for strips with a precipice at the approach end, be ready for a strong downdraft on short final.
- It is caused by the tremendous updraft and downdraft winds within the thunderstorm.
- The rain stifles the updraft, reverses it into a downdraft and kills it.
- Thunderstorm dangers include fierce up and down winds, called updrafts and downdrafts.
- The rear part of the storm is where tornadoes are likely to spawn as the downdraft in the flanking line meets the rotating updraft.
- He battled huge updrafts and downdrafts to take Solo Spirit up and over a 6700-metre Andean peak in a manoeuvre so risky he opted to wear a parachute.
- Downdrafts - a strong flow of air that travels from above the surface to the ground - are enhanced by rain-cooled air and if they become strong enough, downdrafts can drag the belt of strong winds above to the surface.
- Slow the airplane to reduce impact forces; also, you'll likely encounter wind shear and strong downdrafts.
- If a tilt is created in these drafts by wind shear, additional up or downdrafts can occur and this can result in extra cells being formed.
- On any given afternoon, unstable breezes and moisture ratchet up cumulonimbus clouds in a whirlwind of updrafts and downdrafts that cause particles of rain, ice, and snow to collide.
- ‘Hailstorms usually happen in spring and summer afternoons when updrafts and downdrafts interact strongly,’ You said.
- Normally, the air that's moving down, called a downdraft, shares the thunderstorm with the updraft.
- At the time, I was looking for software to visualize my 3-D model data of microbursts, severe downdrafts that sometimes descend from thunderstorm clouds.
- Last year on June 30 a plough wind - a powerful downdraft which can cause damage like a tornado - hit Grimshaw, causing significant damage to the arena and other buildings.
- That's when it was hit by a powerful line squall - a huge downdraft.
- This would be placed in the path of a tornado, and would relay back wind speeds, location of downdrafts and updrafts, number of vortices, etc.
Definition of downdraft in US English: downdraft(British downdraught) nounˈdoundraft A downward current of air. 向下气流；下向通风 the helicopter was caught in a strong downdraft Example sentencesExamples - This would be placed in the path of a tornado, and would relay back wind speeds, location of downdrafts and updrafts, number of vortices, etc.
- ‘Hailstorms usually happen in spring and summer afternoons when updrafts and downdrafts interact strongly,’ You said.
- Thunderstorm dangers include fierce up and down winds, called updrafts and downdrafts.
- Downdrafts - a strong flow of air that travels from above the surface to the ground - are enhanced by rain-cooled air and if they become strong enough, downdrafts can drag the belt of strong winds above to the surface.
- It is caused by the tremendous updraft and downdraft winds within the thunderstorm.
- If a tilt is created in these drafts by wind shear, additional up or downdrafts can occur and this can result in extra cells being formed.
- Three categories of winds have been defined, as well: downdrafts, downbursts (also called macrobursts) and microbursts.
- Slow the airplane to reduce impact forces; also, you'll likely encounter wind shear and strong downdrafts.
- Normally, the air that's moving down, called a downdraft, shares the thunderstorm with the updraft.
- The rain stifles the updraft, reverses it into a downdraft and kills it.
- While the chopper hovered above Coire Na Ciste, bouncing violently in the downdrafts, we looked on as the body was hooked to a cable by rescuers and reeled up into the aircraft.
- At the time, I was looking for software to visualize my 3-D model data of microbursts, severe downdrafts that sometimes descend from thunderstorm clouds.
- Last year on June 30 a plough wind - a powerful downdraft which can cause damage like a tornado - hit Grimshaw, causing significant damage to the arena and other buildings.
- He battled huge updrafts and downdrafts to take Solo Spirit up and over a 6700-metre Andean peak in a manoeuvre so risky he opted to wear a parachute.
- That's when it was hit by a powerful line squall - a huge downdraft.
- The rear part of the storm is where tornadoes are likely to spawn as the downdraft in the flanking line meets the rotating updraft.
- If downdrafts become localized, they can become violent downward bursts of wind that can overpower or even destroy any aircraft.
- Be at least 1000 feet clear of terrain or obstacles; 2000 feet when over mountainous terrain, where downdrafts and turbulence could become factors.
- If the winds are strong, beware of eddy currents coming off nearby trees, and for strips with a precipice at the approach end, be ready for a strong downdraft on short final.
- On any given afternoon, unstable breezes and moisture ratchet up cumulonimbus clouds in a whirlwind of updrafts and downdrafts that cause particles of rain, ice, and snow to collide.
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