原帖由 aabbcc 于 2009-8-24 03:43 发表
A minor change occurs every 7, 10, 14, 20 and 21, 28 and 30 days. This t ime period is only a
proportion of the major cycles.
原帖由 aabbcc 于 2009-8-24 11:43 发表
A minor change occurs every 7, 10, 14, 20 and 21, 28 and 30 days. This t ime period is only a
proportion of the major cycles.