我认为最引人注目的成功的实例是一个产品给企业带来的效益比花费在生产它的费用更多。
I suggest that the most compelling instance of success is a product that brings far more benefit to the organization than the effort involved in creating it.
由严格评价得出的治疗建议不能仅仅基于证据的等级，还应考虑风险效益比和费用问题。
Treatment recommendations evolving from critical appraisal are not only based on levels of evidence, but the risk benefit ratio and cost.
文章基于经典概率分析理论，根据效益-费用比函数建立了单任务人、机功能分配模型，并给出具体应用实例。
Based on classical probability theory, benefit and cost function, a function allocation model of a determined task has been set up and its example has been presented.
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