With OS x, the system is now a very complex construction.

与OSX系统，现在是一个非常复杂的建设。

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X factor: Ainge's bench construction.

X因素：安吉的板凳建设。

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Conversion Method between Construction Coordinate (a, b) and Land Measuring Coordinate (X, Y).

施工坐标(A,B)与大地测量坐标(X,Y)之间的几种换算方法。

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Conversion Method between Construction Coordinate (a, b) and Land Measuring Coordinate (X, Y).

施工坐标(A,B)与大地测量坐标(X,Y)之间的几种换算方法。

youdao