英语翻译
问题描述：
英语翻译
A longitudinal wave causes the particles of a medium to move parallel to the direction of the wave.Figure 15-2b shows a longitudinal wave .Note that the motion of the spring is parallel to the direction in which the wave is moving .Thus the difference between transverse and longitudinal waves is apparent.A sound wave is an example of a longitudinal wave.
答
纵波使介质粒子平行于波的方向运动.图15-2b显示的是纵波.注意弹簧的移动是平行于波的移动方向的.因此横波与纵波的差别是显而易见的.声波是纵波的一个例子.