这就是二重积分的基本定义了。

That's the basic definition.

youdao

这个朴素辞典站点提供基本定义，相关词汇，短语等。

OneLook: This no-frills online dictionary lets you look up basic definitions, related words, phrases and more.

youdao

该词基本定义中：“与某事物或某人相关的背景知识”倒是问题不大。

The basic definition is okay: "background information on something or someone."

youdao

There's a zeroth law The zeroth law every one of these laws basically defines the quantity in thermodynamics and then defines the concept.

有第零定律,这些定律中的每一条都定义了,热力学中一个基本物理量的概念,第零定律定义了温度。

麻省理工公开课 - 热力学与动力学课程节选

The message I'm trying to get to here, because I'm running you right up against time, is I have to be careful about what's a primitive step.

我想说的事情是，因为我正在跟大家讲算法时间复杂度，我们需要注意一个基本步骤的定义,如果我可以假设。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, if you look in chapter one, you will find these definitions for different atomic groupings starting down here with the elements and moving through up through complex matter.

如果你们读第一章，你们会发现不同的原子组的定义,从底下开始有一些基本原理,往上还有复杂的物质。

麻省理工公开课 - 固态化学导论课程节选