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quanliwei:算一下Z系數(shù),大于0.1一般沒(méi)問(wèn)題 (2013-05-04 07:54) {e q378d
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yu-xuegang:這個(gè)加工沒(méi)問(wèn)題的,只是沒(méi)必要這么厚。 (2013-05-02 18:38) 5bAdF'~
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