很多大型的公司都会对自己公司产品线中的产品进行上万次的市场测试，从测试中构建出最受欢迎和最能盈利的产品组合。
Many of the largest, most successful companies have market-tested thousands of products to develop their portfolios of one- to two-dozen existing product offerings.
由于产品组合中加入了更多的高增值产品，以抵消行业的不利因素，部门的边际盈利保持平稳。
Profit margin was maintained stable as a result of constant enhancement of the product mix to offset unfavourable industry factors.
产品盈利能力分析是产品组合决策的基础，而有效的盈利分析有赖于产品成本的准确性和完整性。
Analysis of product profitability is a foundation of product mix decision. A valid analysis is dependent on the accuracy and integrity of cost information.
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