The book features more than 500 maps that show areas of genetic similarity?much as places of equal altitude are shown by the same color on other maps.
此书的一大特点是提供了500 多幅图，显示了相同的遗传基因所处的区域， 这很像其他地图上用同样的颜色标示同样海拔高度的地区。
The book features more than 500 maps that show areas of genetic similarity - much as places of equal altitude are shown by the same color on other maps.
此书的一大特点是提供了500多幅图，显示相同的遗传基因所处的区域。这很像其他地图上用同样的颜色表示同样海拔高度的地区。
In this paper, the main sources of the errors in a meridian catalog, the characteristics of the equal altitude observation and the shortages of an equal altitude catalog are described.
本文叙述了子午星表系统误差的主要来源，等高观测的特点及等高星表的不足之处。
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