根据严格定义(equinox to solstice, spring; Solstice to equinox, summer; ),春夏两季平均光照应一样
跟季节定义有关
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• In the United States and the rest of the northern hemisphere, -shadowboxer- ♂ (1137 bytes) () 09/17/2015 postreply 20:34:08
• 问的是春天和秋天。 -CirrusCloud- ♀ (0 bytes) () 09/17/2015 postreply 20:51:19
• 按严格定义,春夏一样,秋冬一样 -shadowboxer- ♂ (0 bytes) () 09/17/2015 postreply 20:58:11