Most of computer science is somewhere in the middle, and involves finding an efficient (if not optimal) solution to a problem with real requirements.

很多的计算机科学是一种折中的选择，和包含找到一种解决现实需求的有效（不是最理想的）方法。

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Service designs that are purely business driven may not be optimal in terms of re-use, efficient use of resources and information.

纯粹业务驱动的服务设计在重用，以及有效的使用资源和信息方面可能并非是最佳的。

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"There are many examples even in reproductive biology that the natural way is not necessarily the optimal or the most efficient one," they conclude.

“这方面的例证不胜枚举，即便在生殖生物学里，自然方法也未必是最优和最有效的。”这就是报告的结论。

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Appropriate military strength that is cost-efficient is an optimal position.

ECONOMIST: A helping hand

Statutory rates were too high, and deductions and exemptions too many, to make either tax collections efficient or economic activity optimal.

FORBES: Tim Geithner Meekly Phones In Tax Reform

Others argue that in a system that has an income tax, the estate tax will always be less efficient than setting the income tax at optimal rates.

ECONOMIST: Death and taxes