Looking at this list, you also may notice that "platform" is not an entirely well-defined concept.

看看这个长长的列表，你可能也注意到了“平台”并不完全是一个精确定义的概念。

youdao

The temperature scale that turns out to be well—defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.

理想气体温标它有精确的定义，并能引出绝对零度的概念。

youdao

The ESS is a concept defined in game theory, but it applies just as well to economics, biology, psychology, and software development.

ESS是博弈论中定义的一个概念，但它同样也适用于经济学、生物学、心理学和软件开发。

youdao

And the temperature scale that turns out to be well-defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.

比如理想气体温标,它有精确的定义,并能引出绝对零度的概念,今天我们就先来谈谈它。

麻省理工公开课 - 热力学与动力学课程节选

Moreover, the concept of a recession is well-defined.

FORBES: There Are No Longer Any Excuses For Obamanomics

Bajaj is using the concept of foothold markets customer segments that are well-defined, easy to please, and able to introduce a product to much wider swathes of the population.

FORBES: A Foothold Market -- In Rickshaws