There are doubts about the usefulness of these tests.
这些试验是否有用，人们有所保留。
Man early learned the usefulness of weapons.
人类很早以前就知道了武器的用处。
If an interactive computer screen is to match a whiteboard in usefulness, it must be viewable from arm's length as well as from across a room.
如果一个交互式计算机屏幕要在实用性上与白板相匹配，它必须在手臂长度范围和横跨房间范围内是可视的。
Whereas local collaborations sometimes persist past the point of usefulness, because of social or academic obligations, international ones can be cultivated and dropped more freely.
尽管由于社会或学术义务，地方合作有时会超出其有效性，但国际合作可以得到发展和放宽。
An experimental version of the traditional scholarly methods course was designed to raise students' consciousness about the usefulness of traditional learning for any modern critic or theorist.
传统学术方法课程的实验版本旨在提高学生对传统学习对任何现代批评家或理论家有用性的意识。
Affected industries clung to the former wildlife policy of valuing individual species according to their economic usefulness.
受影响的行业坚持以前的野生动植物政策，即根据其经济价值对单个物种进行评估。
It is of the greatest usefulness.
它是极有用的。
A. Ideas of immediate usefulness.
立即有用的想法。
Modifying text.c for command-line usefulness.
修改text. c使命令行有用。
These mistakes sap XML of its power and usefulness.
这些错误损害了XML的能力和有效性。
XJConf has limited usefulness in this context.
XJConf在此方面功能有限。
They can also rate apps according to their usefulness.
它们还根据其实用程度给应用进行排名。
But in the present context it has outlived its usefulness.
但在现在的环境下已经失去了用途。
But the research casts doubt on the usefulness of such products.
但是，一项最新研究却对这些食品的有效性提出了置疑。
Nature admits of no hierarchy of beauty or usefulness or importance.
大自然不会以美丑、用处以及重要性来给动物分等级。
He sees French as a tradition that has outlasted its peak usefulness.
在他看来，法语是一种早已过了其实用性全盛期的传统。
But it may have a number of tests that have outlived their usefulness.
但是可能有许多测试的生命长过其有效时期。
When I started running outside I halved the usefulness of the gym.
当我开始在室外跑步时，健身房的功效就减半了。
To be sure, there are limits to videogames' usefulness in the workplace.
可以肯定的是，游戏在工作场所的使用是有限制的。
The unspeakable truth is that we should not try and outlive our usefulness.
这个可怕的事实是我们不应该试图如行尸走肉般存在。
Usefulness might contribute to utility, but so does style, fashion, or even whimsy.
有用性可能会有益于效用的增加，但是风格、潮流、想法同样可以。
Questions about the dam's usefulness in flood control comes on top of other issues.
大坝在洪水控制方面是否有效的问题是最最重要的。
That in turn limits the usefulness of the phone, however compelling the interface may be.
这进一步使这部手机的用处受到限制，不过交互上的优势可能会挽回一些局面。
For all its usefulness, there is a strong desire to limit our dependence on petroleum.
对于所有的用途，有一种强烈的愿望摆脱对石油的依赖。
The usefulness of the install registries is, at least, enabling the uninstall mechanisms.
安装注册表的可用性至少能够支持使用卸载机制。
As for finding businesses, however, we found the usefulness of the feature to be limited.
然而，这项新功能在寻找企业方面则乏善可陈。
A lot of managers don't fully understand the business usefulness of tablets and smartphones.
许多经理人都没有充分认识到平板电脑和智能手机对业务的帮助。
A lot of managers don't fully understand the business usefulness of tablets and smartphones.
许多经理人都没有充分认识到平板电脑和智能手机对业务的帮助。
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