空气流; 气流
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- An airfoil produces a lifting force that acts at right angles to the airstream and a dragging force that acts in the same direction as the airstream.
翼型产生升力的方向与气流成直角,阻力方向与气流方向相同。收藏 - The changes in force application as a spherical particle moves up into the airstream are shown in Fig. 2. 123
当一个球形的颗粒在气流中向上移动时,其作用力的改变如图2-123所示。收藏 - Only a minimum of strut is exposed to the airstream, the remainder being shielded by fairings not attached to the balance
天平支杆只有很小一部分暴露在风洞气流中,而其余部分都用和天平不相连的风挡罩起来。收藏 - A westward moving airstream will, therefore, move equatorwards as it passes over the barrier
因此,向西流动的气流在通过壁垒时,将向赤道方向运动。收藏 - There are three types of airstream reaction engines
空气喷气反作用式发动机有三种。收藏
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