Perhaps one could roughly state that the concept of the genetic system is the counterpart of the concept of the ecological niche . 人们可能会粗略地说，遗传系统的概念是生态小生境概念的副本。
It is the distinction between forces that accomplish change and forces that do not that is central to the idea of work . 有的力能实现变化，有的力不能实现变化，它们之间的区别正体现了功这个概念的核心。
Geometry, the first branch of mathematics that was brought to a sophisticated level, is based simply on the idea of length . 几何学是数学中最先提高到精湛水平的一个分支，它仅仅建立在长度概念的基础上。
To illustrate the procedure and to lend concreteness to the ideas expressed in this section, a specific boundary-value problem is studied . 为了说明方法和对本节所表示的概念的具体化，将研究一个特殊的边界值问题。
We hardly needed more from graph theory than the definitions of the concepts involved, the emphasis was on the use of probability theory . 我们所需要的图论知识，并不多于所涉及的概念的定义，而重点是在概率的应用上。
In tensor algebra the vector appears as a speical case of a more general concept, which includes stress and inertia tensors . 在张量代数中，矢量是做为更普遍的概念的一种特殊情况出现的，这种更普遍的概念包括应力张量和应变张量。
Nutrition is the science that integrates knowledge of biochemistry and physiology into a unifying concept to the relationships between an organism and its food supply . 营养学是将生物化学和生理学知识汇集于有机体与其食物供给之间相互关系的统一概念的科学。
A close collaboration between theory and experiment during this time revealed both the success (limited though it was) of these concepts, and more important, their shortcomings . 在此期间，理论与实践的密切结合证明了这些概念的成功（尽管是有限的），而更重要地也揭露了他们的缺陷。
Multidimensional perspective on marx ' s view of culture 马克思文化概念的多维透视
Discussion on the gain concept of virtual organization 虚拟组织的收益概念的探讨
