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什么是精益六西格玛
註釋Ben shu jie he shi jian an li,Jie shi le yun yong jing yi liu xi ge ma de si ge guan jian yin su:yong su du he zhi liang ti gao gu ke man yi du;Gai jin liu cheng;Qun ce qun li huo qu zui da shou yi;Yi shu ju he shi shi wei ji chu zui jue ce.