On the spokes . 翻译
【
英语 】
On the spokes of Rims we are going to fix
curvature cross-section due to which when rims are
rotating on the surface of river it pushes the water in
opposite direction and boat moves in forward direction.
【
中文 】
在轮圈的轮辐上我们要修理
当轮缘
它在河面上旋转，把水推进河里
相反的方向，船向前移动。