- active polar surface
- 有效极面
English-Chinese electron industry dictionary (英汉电子工程大词典). 2013.
English-Chinese electron industry dictionary (英汉电子工程大词典). 2013.
Polar low — over the Barents Sea on February 27, 1987 A polar low is a small scale, long lived atmospheric low pressure system (depression) that is found over the ocean areas poleward of the main polar front in both the Northern and Southern Hemispheres. The … Wikipedia
Polar stratospheric cloud — Antarctic stratospheric cloud (nacreous clouds) Abbreviation PSC Altitude 15,000–25,000 m (50,000–80,000 ft) … Wikipedia
Polar exploration — is the physical exploration of the Arctic and Antarctic regions of the Earth. It is also denotes the historical period during which mankind most intensely explored the regions north of the Arctic Circle and south of the Antarctic Circle.… … Wikipedia
polar ecosystem — Introduction complex of living organisms in polar regions such as polar barrens and tundra. Polar barrens and tundra are found at high latitudes on land surfaces not covered by perpetual ice and snow. These areas lying beyond the tree line … Universalium
Polar bear — This article is about the animal. For other uses, see Polar bear (disambiguation) … Wikipedia
Surface weather analysis — A surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground based weather stations. [ Air Apparent: How Meteorologists Learned… … Wikipedia
Active Cavity Radiometer Irradiance Monitor Satellite — ACRIMSAT ACRIMSAT (Active Cavity Radiometer Irradiance Monitor Satellite) est un des 21 satellites du programme Earth Observing System de la NASA. Il a été lancé le 20 décembre 1999 depuis la base de Vandenberg Air Force Base par une fusée… … Wikipédia en Français
Mars Polar Lander — Artist depiction of Mars Polar Lander on Mars. Operator NASA / JPL Major contractors Martin Marietta … Wikipedia
High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project … Wikipedia
List of active Solar System probes — For a list of all Solar System probes, including historic probes, see List of Solar System probes. The MESSENGER spacecraft, now orbiting Mercury This is a list of active probes which have escaped Earth orbit. It includes lunar probes, but does… … Wikipedia
Distributed Active Archive Center — The Distributed Active Archive Centers (DAAC) are part of NASA s Earth Observing System Data and Information System (EOSDIS). DAACs process, archive, document, and distribute data from NASA s past and current Earth Observing System (EOS)… … Wikipedia