企业IT生态系统的价值变迁。
单位面积服务价值的大小与生态系统的类型有着高度的相关性。
There are high correlation between service value of per unit and type of ecosystem.
整治后的张家浜体现出较高的生态系统服务价值。
The ecosystem service value of the regulated river is greatly elevated.
生态系统就是一个价值系统。
在生态系统中，捕食被捕食模型具有很好研究价值。
In an ecological system, predator-prey model is well studied.
在生态系统中，捕食被捕食模型具有很好研究价值。
In an ecological system, predator-prey model is well studied.
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