At that point, most people thought it was a small plane, and probably an accident, but many were worried none the less.
那时，大多数人都认为那是一架小型飞机，可能是一场意外，但是许多人依然担心。
The inclination and the blurred point image size on the image plane are derived.
文中导出了这一像面的倾角和其上子午弥散大小。
The inclination and the blurred point image size on the image plane are derived.
文中导出了这一像面的倾角和其上子午弥散大小。
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