Invitational Education is a theory based on perceptual tradition, self concept theory and humanism.

邀请教育是一种基于知觉心理学、自我概念理论和人本主义教育观的教育理论。

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The paper performs meso analysis of disturbed state concept theory(DSC) which based on hardening model.

对基于硬化模型建立的扰动状态理论（DSC）做细观分析。

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Apart from those bearing in traditional theories as concept theory, property theory, and indication theory, it has a more important meaning that it also serves as a logic variable in the context.

除了传统所认为的概念、属性说、指定指谓说以外，更重要的一个意义是它在文中还作为逻辑变项出现。

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"When Darwin first proposed his theory in eighteen fifty-nine, he had no concept of a gene, no concept of a chromosome, no concept of mutation, and certainly no concept of things like DNA and RNA."

VOA: special.2009.12.01

Another important concept in probability theory that we will use a lot is expected value, the mean, or average-- those are all roughly interchangeable concepts.

概率论中另外一个常用的重要的概念是,期望值或者也叫均值,这两个概念可以互换

耶鲁公开课 - 金融市场课程节选

But, in terms of the basic theory, that's the core concept.

但在基本原理上来说,它是核心概念

耶鲁公开课 - 金融市场课程节选

"I think the concept and the theory of doing that kind of work is still a good one, " says Hess.

FORBES: As a businessman, he's been mixing with a sketchier crowd.

Alpha has always been a slippery concept: in theory there should not be much of it about and academics have struggled to find evidence that the industry consistently realises it for clients.

ECONOMIST: Hedge funds in trouble

In theory the UltraViolet concept has always been a solution to the problem for digital ownership of high value content however, when requiring so many different industries to support and agree on all aspects of the specifications of such a program, it can often feel like getting nations to agree on the Kyoto Protocol.

FORBES: UltraViolet: Boom Or Bust For Studios And Consumers?