因此，第一个问题是引发身体在地球的引力场和牛顿流动性的角度来计算的轨迹。
The first problem is therefore to calculate the trajectory of a body thrown at an Angle in the Earth's gravitational field and Newtonian flow resistance.
因此，第一个问题是引发身体在地球的引力场和牛顿流动性的角度来计算的轨迹。
The first problem is therefore to calculate the trajectory of a body thrown at an Angle in the Earth's gravitational field and Newtonian flow resistance.
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