This is called a "right-handed" coordinate system because the thumb and first two fingers of your right hand can be used to represent the three directions.
这被称为“右手”坐标系统，因为你右手的大拇指、食指和中指可以被用来表示三个方向。
2
You must work... if you use the right-hand corkscrew rule make sure you work with the right-handed coordinate system.
如果你想使用。,螺旋锥法则,必须保证自己是,在用右手坐标系。
3
You will always, always have to work with what we call "a right- handed coordinate system."