| 单词 | decision speed | 
| 释义 | > as lemmasdecision speed   decision speed  n. Aeronautics the speed of an aircraft above which a take-off should not normally be aborted. ΚΠ 1953    Aircraft Performance 		(Internat. Air Transport Assoc.)	 109  				The pilot should never be tempted to take off before having reached the take-off safety speed. This may be best achieved by specifying for twins a decision speed equal to the take-off safety speed. 1957    Aeroplane 93 107/1  				Concerned with accelerate-stop and engine-failure take-off distances in relation to decision speeds. 2004    G. Perry Flying People xi. 80  				As aircraft have become heavier and take-off decision speeds faster, the energy absorption required of the brakes has tested designers' ingenuity to the limits. < as lemmas | 
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