And for each direction, I have a plane.
对于每个方向，都有一个平面。
How far has the plane traveled, then, in horizontal direction?
飞机飞行了多远？，在水平方向？
Well, it's the direction that's perpendicular to this plane.
它其实是朝垂直于平面的方向。
The plane moves in one direction while the conveyer moves in the opposite direction.
翻译：飞机朝一个方向移动（所以，飞机并未固定），传送带朝反方向移动。
The plane was flying in a northerly direction.
那飞机在向北飞行中。
Rolling direction perpendicular to the plane of the bus for the straight line roller.
在垂直于滚动方向的平面内的母线为直线的滚道。
Rolling direction perpendicular to the plane of the bus for the straight line roller.
在垂直于滚动方向的平面内的母线为直线的滚道。
应用推荐