A、plane tangent at one point
B、cylinder tangent at one parallel
C、cone tangent at one parallel
D、series of cones tangent at selected parallel
A、plane tangent at one point
B、cylinder tangent at one parallel
C、cone tangent at one parallel
D、series of cones tangent at selected parallel
时间:2022-01-05 16:38 关键词: 航海出版物
相关问题