西格玛与 PPM 换算表合格率（%）PPM西格玛合格率（%）PPM西格玛6。68933200094。79521003。1258.4559154500.12595。99401003.2510.568944000.2596.96304003。37513。038697000。37597.73227003。515.878413000.598。32168003.62519。088092000。62598。78122003。7522.667734000.7599....

时间:2025-04-14 08:27栏目:行业资料