船位
0708第八节 地文航海
第八节 地文航海 0424.A ___A___ is the intersection of the surface of a sphere and a plane passing through the center of the sphere. (大圆)是指通过某球体中心的横切面与球体在球体表面的交线A.great circle B.small circle C.large circle D....
第八节 地文航海 0424.A ___A___ is the intersection of the surface of a sphere and a plane passing through the center of the sphere. (大圆)是指通过某球体中心的横切面与球体在球体表面的交线A.great circle B.small circle C.large circle D....