n.鈍；率直；遲鈍

The author here studied the effects of both leading edge bluntness and Reynolds number to aerodynamic characteristics of delta wings, through numerical simulation. 本文通過數(shù)值模擬的方法，研究了三角翼前緣鈍度和雷諾數(shù)對(duì)三角翼氣動(dòng)特性的影響。

Missing you becomes everlasting, despite the reserve of the British, the romance of the French, the bluntness of the Americans, the reticence of the Chinese. 不論英國人的保守，法國人的浪漫，美國人的率直，中國人的含蓄，我對(duì)你的思念將成為永恒。

Such bluntness is characteristicof him. 他就是這麼遲鈍。