- ground phenomenon
- 地面现象
Atmospheric Sciences (English-Chinese) dictionary. 2014.
ground phenomenon
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Ground bounce — In electronic engineering, ground bounce is a phenomenon associated with transistor switching where the gate voltage can appear to be less than the local ground potential, causing the unstable operation of a logic gate. DescriptionGround bounce… … Wikipedia
Ground effect in aircraft — Aircraft may be affected by a number of ground effects, aerodynamic effects due to a flying body s proximity to the ground.One of the most important of these effects is the Wing In Ground effect, which refers to the reduction in drag experienced… … Wikipedia
Ground effect in cars — For another similarly named effect relating to aircraft, see Ground effect in aircraft. Ground effect is term applied to a series of aerodynamic effects used in car design, which has been exploited to create downforce, particularly in racing cars … Wikipedia
Phenomenon (film) — Infobox Film | name = Phenomenon caption = Phenomenon theatrical poster director = Jon Turteltaub producer = Barbara Boyle Michael Taylor Charles Newirth writer= Gerald Di Pego starring = John Travolta Kyra Sedgwick Forest Whitaker Robert Duvall… … Wikipedia
Ground loop (aviation) — In aviation, a ground loop refers to the rapid rotation of a fixed wing aircraft in the horizontal plane whilst on the ground. Aerodynamic and centrifugal forcesFact|date=April 2008 may cause one wing to rise, which may then cause the other… … Wikipedia
Ground-structure interaction — DesignThe interaction between ground and structure consists of an exchange of mutual stress between the structure itself and the foundations ground. This means that the movement of the whole ground structure system is influenced by the type of… … Wikipedia
Ground track — A ground track or ground trace is the projection of a satellite s orbit onto the surface of the Earth (or whatever body the satellite is orbiting). It is an imaginary path along the Earth s surface which traces the movement of an imaginary line… … Wikipedia
ground resonance — A resonance that manifests itself as a violent rocking of the helicopter when it is on the ground. This phenomenon is most evident when the helicopter is on hard surfaces that do not absorb vibration. It is caused by the resonance between the… … Aviation dictionary
ground effect — The phenomenon that occurs when the airflow between a moving object and the ground creates downforce … Dictionary of automotive terms
Abduction phenomenon — The term abduction phenomenon describes claims of non human creatures kidnapping individuals and temporarily removing them from familiar terrestrial surroundings. People alleged to have been abducted are called abductees or experiencers. The… … Wikipedia
Death row phenomenon — Part of a series on Capital punishment Issues Debate · … Wikipedia
