The practical wisdom of teachers holds the properties of being individual, situational, generative, inexpressive, integrated.

教师实践智慧具有个体、、生成、缄默、综合等特点。

Generative nuclei The two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms.

在被子植物花粉管中生细胞（应为雄原核译者注）分裂成两个配子核。

Founded on the hypercycle theory, this article discusses the basic generative mechanism of complex system, and deduces the key characteristics of generative systems.

文章以超循环理论为基础，讨论了复杂系统生成基本机制，并由此推出生成系统重要特征。