Is also a great introduction to this topic and shows the motivation and theory behind the "relational algebra" in ActiveRecord 3.

也是一个关于此话题的很好的介绍，解释了ActiveRecord 3中的“关系代数”背后的的动机和理论。

youdao

This paper firstly gives a brief introduction of motivation theory and incentive policy, including the contents of incentive policy and the main types of motivation theory.

本文首先简要介绍主要的激励理论和激励机制，包括激励机制的内容，激励理论的主要类型等。

youdao

Secondly, the introduction of the current staff of domestic enterprises on motivation of the knowledge workers and existing problems, as well as of this paper establish a realistic starting point.

其次，介绍了目前国内企业在知识员工激励方面的现状和存在的问题，也为本文的写作确立了现实的出发点。

youdao

Yet it remains the most sophisticated but accessible introduction to Duchamp's motivation, evolution, imagery and intellectual sources.

WSJ: John Golding | Cubism's Vasari | By Elizabeth Cowling