Built-in motor rotates this illuminated earth at a constant rate .

内置马达让这款装有灯饰的地球仪以恒定速率旋转。

Each dot rotates rapidly and animates the skin of the sculpture .

每个点都在快速旋转，赋予了这件雕塑品以灵动的表面。

Look at the red dot on the earth and the path it travels as the earth rotates .

看着地球上的红点以及地球旋转时它的轨迹。

A slow moving river current can create a slow turning eddy , which rotates , forming an ice disc .

一条缓慢流淌的河水可以形成慢速的涡流，伴随着旋转，就会形成了一个冰盘。

Giving photons orbital angular momentum means twisting a beam 's wavefront so that , as the beam travels forward , its wavefront rotates around the propagation axis .

给予光子轨道角动量意味着扭转光束的波前，使得光束在向前传播时，其波前会绕着传播轴旋转。