Note that the search area defines the possible locations of the centre-point of the tracker, rather than the entire tracking window itself.
注意，搜索区域定义了跟踪的可能位置中心点，而不是整个跟踪窗口本身。
2
It's all about rotational mechanics. When you turn your hands over you're rotating them around their centrepoint, which is near the middle of your palm.
这是一个力学常识，当你翻转手掌时，手掌是以掌心为中心旋转地。
3
Corrections are implemented in the machine CNC with the aim of achieving the target position for the tool centrepoint.