所使用的材料必须能够耐高温。
The materials used have to be able to withstand high temperatures.
现代造纸中主要使用的材料是棉布或亚麻布和木浆。
The materials chiefly used in modern papermaking are cotton or linen rags and wood pulp.
现代造纸中主要使用的材料是棉布或亚麻布和木浆。
The materials chiefly used in modern papermaking are cotton or linen rags and wood pulp.
So let me turn now to just some of the administrative, organizational details of the course, the secondary readings that we'll be using.
好现在让我来另外讲一些关于这门课程的管理及,组成成分方面的细节,一些我们将要使用的阅读辅助材料。
And while I'm at school in class, I can use the e-books of the courses that I'm studying.
在学校上课的时候,我也可以使用那些我修的课程的电子材料。
This material will be necessary to do the listening exercises for the course, which is sort of the backbone of the course.
做听力练习时我们必须使用这些材料,听力训练是课程的核心内容
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