Does it actually come down and then back up without going to the left or to the right and without making an Angle?

有可能往下然后往回来，并且不偏不倚，也没有形成一个角吗？

youdao

In this case, he chooses the Angle that makes down-sloping planes look like up-sloping planes.

在本例中，他选择了让下坡面看上去像上坡面的角度。

youdao

The main blades pitch Angle is controlled by the up and down movements of the swashplate.

大桨的螺距角度是由倾斜盘的上升和下降动作控制的。

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