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 UID222305 帖子379 主题21 注册时间2011-7-2 最后登录2015-12-5 
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3#
 
 发表于 2013-4-24 06:32 
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| I think this sounds correct 1: shift only
 2: shift only
 3: if used alone, then shift only. if combined with linear optimization, can protect twist.
 4: shift + twist
 5: mostly shift. protect against twist only in the initial periord.
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