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单词 still-air
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still-air
still-air adj. (a) Aeronautics applicable or calculated for a state of no wind; (b) not employing forced draught.
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the world > food and drink > farming > animal husbandry > keeping birds > poultry-keeping > [adjective] > of incubator
still-air1913
society > travel > air or space travel > a means of conveyance through the air > aeroplane > qualities and parameters of aircraft > [adjective] > applicable to state of no wind
still-air1913
1913 Captain Sept. 1072/2 A machine with still-air speed of 57 miles per hour was sent up to fight a gale for 400 yds.
1948 Jrnl. Royal Aeronaut. Soc. 52 600/2 We often read..of two aircraft of widely varying characteristics being compared over similar still-air ranges.
1951 ‘N. Shute’ Round Bend vi. 177 She had tankage for twelve hundred gallons, giving her a still-air range of about two thousand miles.
1960 Farmer & Stockbreeder 19 Jan. 108/1 Game birds are not..easy to hatch..in the big cabinet..machines... Reasonably good results, on a small scale,..can be got from the more old-fashioned still-air machines.
1961 P. W. Brooks Mod. Airliner iv. 100 A payload of 6,000 lb. was required for a still-air range of 3,500 miles.
1977 Shooting Times & Country Mag. 13–19 Jan. 26/2 Small incubators—those that take 100–200 pheasant eggs—are nearly always the ‘still air’ type and depend on convection currents for ensuring air movement.
extracted from stilladj.n.2
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