The aerodynamic characteristics of a tethered balloon with inverted "Y" fins were estimated by the traditional aerodynamic estimation from the flight dynamics analysis viewpoint.
从飞行力学分析的角度 ，用传统的气动力估算方式对具有倒“Y”型尾翼的系缆气球的气动力特性进行估算 。
The study dismisses another blimpish idea, though: that of pumping sulphurous chemicals up a long pipe held aloft by a large tethered balloon.
报告排除了另一种早期的设想，即通过一个巨大的系留气球，用固定在上面的长长的管子向天空喷洒硫化物。
So far, apart from some low-altitude test flights, the only stratospheric tests have involved a scaled-down version tethered to a weather balloon.
目前对飞船只进行了一些低海拔的飞行测试，平流层的测试则仅仅是由气象探测气球负载着规模缩小的模型原型机来进行的。
That is the theory, at least. So far, apart from some low-altitude test flights, the only stratospheric tests have involved a scaled-down version tethered to a weather balloon.
这些就是目前的原理，迄今为止，除了一些在低海拔的飞行测试，唯一的平流层测试是涉及一个按比例缩小拴在气象气球上的模型。
After all, kids get to build their own gliders and rockets, fly simulators, see aviation legends tell their stories, ride in a tethered hot-air balloon, and so much more.
之后孩子们制作自己的滑翔机，火箭，操作模拟器，观看航空传说，讲述他们的故事，驾驶热气球和诸如此类的活动。
After all, kids get to build their own gliders and rockets, fly simulators, see aviation legends tell their stories, ride in a tethered hot-air balloon, and so much more.
之后孩子们制作自己的滑翔机，火箭，操作模拟器，观看航空传说，讲述他们的故事，驾驶热气球和诸如此类的活动。
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