珊瑚和依靠这些珊瑚生存的动物的灭绝不止仅仅对于渔业造成威胁，从地球物理的角度来看，生态系统是一个严密的生物组织体系，她规定着营养和能量的转化和流动。
The loss of corals and the animals that depend on them doesn’t just threaten fishing. From a geophysical perspective, ecosystems are biological mechanisms that regulate flows of nutrients and energy.
根据生态系统的物质循环、能量流动和信息传递三大基本功能，分析了网络学习生态系统的功能。
According to an ecosystem'sessential function of substance circulation, energy exchanges and information transfer, the paper analyzes the function of E-Learning ecosystem.
能量流动是所有生态系统内在的共有的功能特征之一。
Energy flow is one of the inherent and common function characteristics of ecosystems.
应用推荐