According to the flight-dynamics theory, a mathematical model of aircraft ramp ski-jump take-off is established.
根据飞行动力学理论，建立了舰载机滑跃起飞数学模型。
Varyag's smaller size, and especially its ski-jump ramp, mean that it will not be able to deploy heavier planes that require the assistance of a catapult to take off.
瓦良格号较小的体型，尤其是它的滑跃式斜坡，意味着它将不能部署需要弹射器助飞的那种较重的飞机。
The ski jump is a cheaper and less complex take off alternative to the steam catapult.
与蒸汽弹射器起飞相比，滑跃式起飞是比较便宜且较为简单的方法。
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