英语词汇“delta-v”的音标、意思、用法及中文翻译-反思网

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Over a time "t" the change in speed of the spacecraft is ("a" - "g") "t", whereas the delta-v expended is "at".
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A rocket stage, while carrying a given load, is capable of giving a particular delta-v.
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Currently, 2-4 stages are needed to achieve the required delta-v.
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For low exhaust velocity with respect to the mission delta-v, enormous amounts of reaction mass is needed.
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The velocity of the vehicle needs substantial burns at the intersection of the two orbital planes and the delta-v is usually extremely high.
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In this case a gravity turn is not the optimal entry trajectory but it does allow for approximation of the true delta-v required.
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In astrodynamics, this energy expenditure is defined by the net change in the spacecraft's velocity, or delta-v.
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It is also notable for having a low delta-v requirement for rendezvous.
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It is typical to combine the effects of these and other effects into an effective mission delta-v.
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The delta-v to make the necessary plane change is typically extremely high.
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The actual acceleration of the craft is "a" - "g" and it is using delta-v at a rate of "a" per unit time.
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The early business model for these services is primarily in near-geosynchronous orbit, although large delta-v orbital maneuvering services are also envisioned.
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To reach low earth orbit of the space station of 300 km, the delta-v is over six times higher about 9.4 km/s.
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To reach orbit, the rocket must impart to the payload a delta-v of about 9.310 km/s.
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Orbital speed is slower for higher orbits, but attaining them requires higher delta-v.
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Thus, the effective delta-v requirement for these vehicles are reduced.
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Also, the equation strictly applies only to a theoretical impulsive maneuver, in which the propellant is discharged and delta-v applied instantaneously.
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The delta-v needed to achieve low earth orbit starts around 9.4 km/s.
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The correction of this effect requires orbit control manoeuvres with a maximum delta-v of about 2 m/s per year, depending on the desired longitude.
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词汇	delta-v
释义	BETA Examples of delta-v delta-v isn’t in the Cambridge Dictionary yet. You can help! To correct for this orbital perturbation, regular orbital stationkeeping manoeuvres are necessary, amounting to a delta-v of approximately 50 m/s per year. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Over a time "t" the change in speed of the spacecraft is ("a" - "g") "t", whereas the delta-v expended is "at". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A rocket stage, while carrying a given load, is capable of giving a particular delta-v. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Currently, 2-4 stages are needed to achieve the required delta-v. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For low exhaust velocity with respect to the mission delta-v, enormous amounts of reaction mass is needed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The velocity of the vehicle needs substantial burns at the intersection of the two orbital planes and the delta-v is usually extremely high. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In this case a gravity turn is not the optimal entry trajectory but it does allow for approximation of the true delta-v required. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In astrodynamics, this energy expenditure is defined by the net change in the spacecraft's velocity, or delta-v. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is also notable for having a low delta-v requirement for rendezvous. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is typical to combine the effects of these and other effects into an effective mission delta-v. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The delta-v to make the necessary plane change is typically extremely high. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The actual acceleration of the craft is "a" - "g" and it is using delta-v at a rate of "a" per unit time. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The early business model for these services is primarily in near-geosynchronous orbit, although large delta-v orbital maneuvering services are also envisioned. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To reach low earth orbit of the space station of 300 km, the delta-v is over six times higher about 9.4 km/s. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To reach orbit, the rocket must impart to the payload a delta-v of about 9.310 km/s. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Orbital speed is slower for higher orbits, but attaining them requires higher delta-v. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, the effective delta-v requirement for these vehicles are reduced. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Also, the equation strictly applies only to a theoretical impulsive maneuver, in which the propellant is discharged and delta-v applied instantaneously. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The delta-v needed to achieve low earth orbit starts around 9.4 km/s. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The correction of this effect requires orbit control manoeuvres with a maximum delta-v of about 2 m/s per year, depending on the desired longitude. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.
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Examples of delta-v