n. centring
misc. centering adjustment
... center-hole bit 带中心水眼的钻头 centering adjustment 对准中心 centering chamfer 定心槽 ...
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如果您使用的是自动对焦相机，您需要先锁定焦点，这是因为大多数相机将焦点对准取景器中心的物体。
You'll need to lock the focus if you have an auto-focus camera because most of them focus on whatever is in the center of the viewfinder. Try it yourself.
我喜欢中心对准，并已趋于使用了一段时间我的设计的。
I like center-aligning, and have been tending to use it on my designs for a while.
然后将重复曲率中心测试并与第一测试进行比较以确保反射镜保持对准。
Then the Center of Curvature test will be repeated and compared to the first test to ensure that the mirrors remain aligned.
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