In outline recognition, to reduce the misjudge result from calculated error of the core position, reference frame transform and second derivative of curve were adopted.

轮廓识别采用坐标变换及曲线求二阶导数，避免了果核位置判断误差造成的误判。

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They are believed to use the position of the sun as a reference point and can compensate for its movement across the sky when calculating the route they need to return home.

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Wish her well in her new position, offer to be a reference in the future, and encourage her to keep in touch.

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His career WAR according to Baseball Reference is 62.1, ranking 88th among position players and higher than those of Jackie Robinson, Yogi Berra, Harmon Killebrew and Hank Greenberg.

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