The ratio is currently around 38.3.
当前比例在38.3左右。
The ratio in Serbia and Macedonia is around 108.
塞尔维亚和马其顿两国的男女比率约为108。
A modern sports glider, with long, slender wings, is the most aerodynamically efficient aircraft, with a lift-to-drag ratio of around 50:1.
现代运动用滑翔机的机翼长而细薄,拥有最佳的空气动力学效率,其升阻比达到50:1。
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