介绍环境流场中的动量及纯量传输，主要着重于河川和湖泊系统的探讨。

Introduction to momentum and scalar transport in environmental flows, with emphasis given to river and lake systems.

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重点介绍环境犯罪的罪名称呼、环境犯罪概念及内涵和环境犯罪的具体分类等问题。

Mainly introduces the accusal title, concept and its connotation, as well as classification of environment crime, and so on.

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镜头动静结合用以介绍环境背景、交代时间空间、抒发人物情绪、推进故事情节等等。

Lens for introducing environment combining static background, metasomatism time space, to express the characters' emotions, promoting storyline, etc.

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And I want to share with you couple of studies-- I'll share one study and then another later-- about the environment.

我想介绍两个研究-,先说第一个再说第二个，关于环境。

哈佛公开课 - 幸福课课程节选

itself and introduce Scratch, the programming language in an environment we looked at, but also some of the fundamentals that we'll lace throughout the course.

这周五我们就开始讲计算机科学，并在我们设定的环境下,介绍编程语言Scratch的用法，而且我们也会在课程中,捎带讲一些基础知识。

哈佛公开课 - 计算机科学课程节选