英文英文字典

英文英文字典

古腾堡计划中的在线英语-英语词典

Colure的结果

Colure (n.)

One of two great circles intersecting at right angles in the poles of the equator. One of them passes through the equinoctial points, and hence is denominated the equinoctial colure; the other intersects the equator at the distance of 90¡ from the former, and is called the solstitial colure.