For instance, physics allows you to observe and rationalise the world, but also to integrate observations into models and, sometimes, models into theories or laws that can be used to make predictions.
例如，物理学可以让你观察并理解世界，但也可以将观察到的现象整合成模型，提炼出理论或定律用以对未来做出预测。
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
凭着本身强烈的光束，激光可在钻石上钻一个洞，而且可以被很好地控制，因此能用于精密的眼部手术。
Then the blood can be used for people in need.
然后这些血液就可以用来帮助有需要的人。
The kinds of sound that can be used for musical purposes are amazingly varied.
可用于音乐目的的声音种类惊人地千差万别。
The gym can be used by both able-bodied and disabled people.
该健身房既可以让体格健全的人使用也可以让残疾人使用。
The article can be used to stimulate discussion among students.
这篇文章可用来活跃学生的讨论。
The land under wind turbines can be used for grazing cattle and other purposes, and leasing land for wind turbines can provide extra income for farmers and ranchers.
风力涡轮机下方的土地可以用来放养家畜和用于其他用途，而租借给风力涡轮机的土地也可以为农民和牧场主提供额外的收入。
At some point, there has to be a limit on how much land can be used for sugar cane production—certainly if you want to preserve natural habitats and native wildlife.
有些时候必须限制用来生产甘蔗的土地面积——当然，如果你想保护自然栖息地和本土野生动物的话。
Its fruit and leaves can be used to make medicine.
它的果实和叶子能入药。
One of the nice things about voice recognition is that it can be used when we're on the go.
语音识别的好处之一就是它能在我们外出时使用。
It can be used to "listen" to spoken words and turn them into text that deaf people can read.
它可以用来“听”话语，并把它们转换成聋人可以阅读的文本。
A large selection of books and other resources can be used and borrowed by library members for free.
图书馆会员可以免费使用和借阅大量书籍和其他资源。
These insights can be used to help people make better decisions.
这些洞见可以帮助人们作出更好的决策。
This is a powerful tool — the places it can be used are endless.
这是一个功能强大的工具，它几乎可以用于任何地方。
We see her pointing out different plants, and how they can be used.
我们能看见Neytiri教Jake辨认不同的植物以及它们的作用。
A good graphic can be used to support the text in a clear and simple way.
好的图形可以以简单明了的方式支持文字。
This is a handy tool that, once learned, can be used for your entire lifetime.
这个常用工具一旦掌握，将受益终生。
Lucidity can be used not only to look at your dreams but also to control dream plots.
在梦里你是清醒的，而且能够控制梦境的情节。
“Welcome to (some place)”. This pattern can be used when someone arrives at your home.
这个句型可以作为日常家中来客人时的欢迎语,也可以用在饭店宾馆服务员招待顾客时。
Using solar arrays saves weight that can be used to enhance safety and launch more cargo.
而使用太阳能电池阵列则节省重量，有利于加强安全和装载更多的货物。
Some also smell good and can be used to make scented oils -- for example, lavender and lilac.
它们中的一些气味很好闻，可以用来制造香精油--例如薰衣草和紫丁香。
To help save time, tools can be used to automate, or at least partially automate, many tasks.
为了节约时间，可以使用工具让许多工作自动化，或者至少半自动化。
Ornamentals can be used to mark the border of a property or to provide privacy from neighbors.
观赏植物可以用来标记房屋的边界，或者为邻里之间提供隐私空间。
Ornamentals can be used to mark the border of a property or to provide privacy from neighbors.
观赏植物可以用来标记房屋的边界，或者为邻里之间提供隐私空间。
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