我们现在来仔细观察这条蛇的腹鳞,不是背面。
We shall now examine the ventral plates of this serpent , not the dorsal side .
腹鳞的摩擦阻力主要是粘着力和微凸体变形的滞后阻力。
The friction resistance is mainly due to the adhesion and the deformation hysteresis resistance of microfibrils .