The optimum mix and the main effect factor is determined by the strength at 28 days and verified by the regression strength at 90 days.

由28 天强度确定了最佳配比和主要影响因素，用回归90 天的强度进行了验证。

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The influence of hair fibre with different mix amount and length on the bending strength of cement were studied experimentally and the optimum mix amount and length have been found.

通过实验研究了不同掺量、不同长度的毛发纤维对水泥抗折强度的影响，找出了最佳长度和最佳掺量。

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There is no fixed recipe in approaching metering in all kinds of situations. It's a mix-n-match of different techniques - all used to make sure I get optimum exposure for my images.

当然因为情况多种多样，不可能有一种固定方法能适用于所有的情况。一般需要多种技术进行组合以取得最好的曝光。

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For U.S. stocks we set an optimum mix based on style and sector of the economy.

FORBES: How Do Financial Advisors Earn Their Fee?

In each case we search for the optimum mix for long-term investing.

FORBES: How Do Financial Advisors Earn Their Fee?

The concept of a globally diversified portfolio as the optimum investment mix is widely accepted in academia and institutional practice.

FORBES: How Much International?