【摘要】 选取Ｃ语言编程，利用最小二乘法对实际生产数据进行线性回归分析。建立４６２缸体陷定量分析数学模型，为预测及控制缺陷废品率在规定范围内提供保证。更多还原

【Abstract】 The mathematical model of quantitative analysis for 462 cylinder they casting defects were eatablished bymeans Of linear regression analysis using least sauare method through collecting practical data with C language. It providedguarantee for predication and controll of casting defective index within permissive range.更多还原