有效刷牙的概念和方法？

Effective concepts and methods of the brush?

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本章主要讨论价值链分析、价值链优化和价值链评价的基本概念和方法。

In this chapter I mainly discuss the basic concepts and ways of value chain analysis, optimization and evaluation.

youdao

并在此基础上，提出了培养算子的基本概念和方法，以进一步改进解的质量。

Based on that, the basic concept and fundamental method of culture operator are introduced to further improve the solution quality.

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So that you will come away with a sense of what you can do, what you can't do, and what kinds of things you should use to tackle complex problems.

因此你们才能对,你们能做的事儿，不能做的事儿,和用何方法去,解决棘手问题有一个基本概念。

麻省理工公开课 - 计算机科学及编程导论课程节选

I want to talk about the goal of the course, what it is you'll be able to do at the end of this course when you get through it, and then I want to begin talking about the concepts and tools of computational thinking, which is what we're primarily going to focus on here.

我想讲讲课程目标，也就是当你们完成了这门课时,应该达到的程度，接下来我想开始谈谈,计算思维的概念和方法，即这门课程的核心内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

You've got to be very used to the notion of taking a vector in some oblique direction and writing it in terms of i and j.

你们应该已经很熟悉,倾斜的坐标系中矢量的概念,和用 i 和 j 来表示该矢量的方法

耶鲁公开课 - 基础物理课程节选