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汉语拼音：xiào yòng

消费者从一定的商品组合中获得的满足程度。

1. 犹效劳。发挥作用。

   《尉缭子·武议》：“起兵直使甲胄生蚁者，必为吾所效用也。”《后汉书·种岱传》：“虽未建忠效用，而为圣恩所拔，遐邇具瞻，宜有异赏。”《醒世恒言·杜子春三入长安》：“既然老师不允，容弟子改过自新，三年之后，再来效用。”

2. 功效；作用。

   郭沫若 《反正前后》发端：“一言一动都应该以社会的效用为前提。” 续范亭 《国难严重中纪念国庆》：“迅速开放民主，发展民力，使各党、各派、各阶屋，皆能发挥其最大效用。” 唐弢 《关于女人的书籍》：“在时代和意识逐渐转变的今日，早已变成古董，失去效用。”

• Within twenty minutes it had worked and I felt a lot better although I still had the pressure and visual disturbance.

  大约过了20分钟，它开始起效用了，我感觉好了些，虽然我仍旧有压迫感及视觉骚扰。

• It will also be noticed that this utility function is one where the marginal utilities of X and Y are independent.

  还须注意的是，这个效用函数中，X和Y的边际效用是相互独立的。

• But utilities seem to be getting better at maintenance; some keep their reactors going more than 90% of the time.

  不过它在维护方面效用更好一些，一些核反应堆可以在90%以上的时间内连续运行。

• So I'm going to fight on for Net works, even if that means continuing to have incredibly boring conversations with people about this topic.

  我会继续为“网络效用”作斗争，即使这意味着继续和人们进行相关的极无聊的谈话。

• Utility: A term common in economics textbooks to describe how much value a person gets from a good or service.

  效用：经济学中普遍使用的术语，用来描述人从一件物品或者服务中获得的主观价值。

• The content and utility of these files varies from system to system, but the core information provided by the files is often consistent.

  这些文件的内容和效用因系统而异，但是文件提供的核心信息通常是一致的。

• A common framework for understanding either type of decision problem is to use the concept of a utility function, borrowed from economics.

  决策问题中有一类用于理解的通用框架借用了一个经济学概念，称作效用函数。

• These have been shown to have strong antioxidant effects, though only a small number of their constituents have been evaluated in detail.

  它的效果在许多具有强抗氧化效用的食物上有所体现，尽管他们的成分只有一小部分的细节经过了评估。

• Utility value is the matter agent of environmental economics value, utility value relation assumes catenoid or netlike structure.

  效用价值是环境经济价值的物质承担者，效用价值关系呈链状或网状结构。