这个谜题的英文解释哪位英语达人能给翻译下？

coho_413

这是第18个谜题，让你选出603对应的符号。
  mycheats.1up.com网站对这道题的注解为：In the lower right there are a number of x-rays of the brain with the number 5 and then symerian symbol for 1. Line up 5 with that symbol on the dial. On the second picture from the left is a mathematical progression, starting with the sumerian symbol for 1 and continuing with "+2+6+2+1..." and so on. This is the system in which the codewheel is arranged. As you can see on the code wheel, the symbol following the Sumerian 1 is the Sumerian 3 (being 1+2), the next is the Sumerian 9 (being 3+6), then Sumerian 11 (9+2) and Sumerian 12 (11+1). Continuing the sequence will let you figure out which Sumerian symbols are missing on the codewheel (17 and 31)
  英文不好，想知道这道题是怎么个逻辑推理？英文好的帮忙翻译下，多谢！.

为啥被禁言

没推理，看攻略过的……惭愧……

coho_413

回楼上的，听君一番言，立即茅塞顿开啊！！开始的数字5和苏美尔符号1相等这个之前已经知道了，左边第二个图的加法一直没搞懂是怎么回事，这回终于解开了！十分感谢你~谢谢~也感谢一楼的！

coho_413

对了还不得不赞一下这回ac2的用心，连解谜题都让人十分投入~~好久没这么用心玩一款游戏了