But experts say no-one knows how large the world stockpile of nuclear material is because not every country reports what it's producing.

VOA: standard.2010.04.06

We could just collect a bunch of data. For a material .What's the volume it occupies at some pressure and temperature?

对一种物质我们可以得到一系列测量数据,在给定的温度和气压下,它的体积是什么？

麻省理工公开课 - 热力学与动力学课程节选

What I really want to do is just give an example of what happens when you throw the thing, the material into a calorimeter and see how much the temperature changes.

我想做的是给出当,你把这些东西，这些材料扔进，量热计时会发生什么,看看温度会变化多少。

麻省理工公开课 - 热力学与动力学课程节选

What we learned particularly regarding the evolution of the mind provided supporting material for what follows.

我们学到的，尤其是思想进化的知识,是后面的课程的知识基础。

耶鲁公开课 - 心理学导论课程节选

Do we offer what we dub packer editions of problem sets which extensively cover the same material but with a more technical sophistication, with more detail, and these are simply options that students in this course can elect as per the syllabus.

我们提供涵盖同样内容,但具有更多技术性细节的,我们称之为习题包，其中有更详细的信息,这些只是按照教学大纲的要求让同学们可以自主选择。

哈佛公开课 - 计算机科学课程节选

Because you trust biomedical engineers to have done a good job in designing these things and we'll talk about how biomaterials are designed and tested, and what makes a material, the properties of a material that you could use as a contact lens, what are the properties that it needs to have.

因为你深信生物医学工程师们,在设计这些材料时,已经做了充分的工作,我们会讨论如何设计和测试这些生物材料,什么材质具有,能够用来,做成隐形眼镜的材料的属性,它们需要具备的特性究竟是什么

耶鲁公开课 - 生物医学工程探索课程节选

All right, so we can go to today's notes, and in terms of the notes, what we're going to start with is finishing material that's going to be relevant for exam 1, and I told you on Wednesday that actually I'd give you some information today in terms of what you need to do to prepare for exam 1.

好，下面我们进入今天的讲义内容，而依照讲义，我们今天首先,要把第一次考试要求的最后一部分内容讲完，而且我周三曾经告诉过大家,我会在今天把一些信息告诉大家,是关于如何准备第一次考试的。

麻省理工公开课 - 化学原理课程节选

What are the key ideas and the key themes of the Priestly material?

祭司相关内容的主要观点和主题是什么？

耶鲁公开课 - 旧约导论课程节选

And they also seem to bear some relationship to the laws in Leviticus and Numbers. But the question is, what is the relationship between the different versions of the legal material? Some of these laws will parallel each other quite closely and others do not.

它们似乎和利未记以及民数记的律法存在,联系但问题是，这些不同版本的律法间,究竟有什么样的联系？部分律法间,彼此一致，其它则不然。

耶鲁公开课 - 旧约导论课程节选

This material is a theologically oriented account of Israel's history from the conquest of Canaan, or what is represented as the conquest of Canaan, to the destruction of the state by the Babylonians in 587-586 BCE.

这些内容是以神学为基础对以色列历史的记叙,从征服迦南，或者说是显示出的对迦南的征服，到公元前587到586年被巴比伦人攻陷城邦。

耶鲁公开课 - 旧约导论课程节选