- total lift of a balloon
- 气球总举力
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Balloon boy hoax — The balloon boy hoax occurred on October 15, 2009 in Fort Collins, Colorado, when Richard and Mayumi Heene allowed a gas balloon filled with helium to float away into the atmosphere, and then claimed that their six year old son Falcon was inside… … Wikipedia
Hot air balloon — This article is about hot air balloons themselves. For the associated activity, see hot air ballooning. For the rock opera, see Hot Air Balloon (rock opera). For the song, see Hot Air Balloon (song). Hot air balloon in flight … Wikipedia
lift — [lift] vt. [ME liften < ON lypta < lopt, air, akin to OE lyft, Ger luft, Du lucht] 1. to bring up to a higher position; raise 2. to pick up and move or set [lift the box down from the shelf] 3. to hold up; support high in the air 4. to… … English World dictionary
balloon flight — ▪ aviation Introduction passage through the air of a balloon that contains a buoyant gas, such as helium or heated air, for which reason it is also known as lighter than air free flight. Unmanned balloons have been used to carry meteorological… … Universalium
Five Weeks in a Balloon — … Wikipedia
pilot balloon observation — noun A method of winds aloft observation, temperature, and relative humidity of the upper that is, the determination of wind speeds and air and to automatically transmit that directions in the atmosphere above a station. This is done by reading… … Wiktionary
Moored balloon — Moored balloons can carry instruments and sensors for long durations that are impractical for other aircraft … Wikipedia
Ceiling balloon — A ceiling balloon is used by meteorologists to determine the height of the base of clouds above ground level during daylight hours.The principle behind the ceiling balloon is a balloon with a known ascent rate (how fast it climbs) and determining … Wikipedia
airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also … Universalium
Airship — For other uses, see Airship (disambiguation). Dirigible redirects here. For the 1931 film, see Dirigible (film). Not to be confused with Balloon (aircraft) or Blimp. Airship … Wikipedia
Sophie Blanchard — Blanchard engraved in 1859 Born 25 March 1778(1778 03 25) Near La Rochelle Died 6 July 1819 … Wikipedia