So the moment that I decide to define this the plus direction will also come out to be the same sign as this one so I flip the signs there.
因此我决定，在此处改变正方向，加速度方向就始终为正了，符号变了。
Those frictional forces for this rope to go in this direction will flip over.
绳子的这个方向的,摩擦力会翻转。
On the flip side, Ben's back in town with newfound direction - he's determined to go to medical school.
另一方面，本回到城里有了新的方向——他决定上医药学校。
That flip transfers angular momentum to the domain wall, pushing it along in the direction of the current.
这一方向的转变会将角动力(angular momentum)传递到域壁(the domain wall)上，推动域沿着电流的方向移动。
You can tilt the iPad any direction, even upside down, and the screen will flip to display an upright image.
你可以任意旋转iPad，甚至上下倒置，屏幕会随即调整显示正确朝上的图片。
Flip or rotate the arrow to change its direction.
翻转或旋转箭头可更改其方向。
Flip or rotate the arrow to change its direction.
翻转或旋转箭头可更改其方向。
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