- primary air system
- 新风系统
English-Chinese electricity dictionary (电气专业词典). 2013.
English-Chinese electricity dictionary (电气专业词典). 2013.
System of systems — is a moniker for a collection of task oriented or dedicated systems that pool their resources and capabilities together to obtain a new, more complex, meta system which offers more functionality and performance than simply the sum of the… … Wikipedia
Air navigation — The principles of air navigation are the same for all aircraft, big or small. Air navigation involves successfully piloting an aircraft from place to place without getting lost, breaking the laws applying to aircraft, or endangering the safety of … Wikipedia
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Air pollution — from World War II production Smog over … Wikipedia
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Air Force Research Laboratory — Emblem of AFRL … Wikipedia
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Air Force Intelligence, Surveillance and Reconnaissance Agency — emblem Active June 8, 2007 … Wikipedia
Air Florida Flight 90 — Salvage operations on January 19, 1982 Accident summary Date January 13, 1982 Type … Wikipedia