看起来，我们需要进一步了解分析海洋生态系统。
There is a need for a much greater analysis of marine ecosystems.
第一章为生态环境与历史背景分析。
Chapter one is the analysis of ecological environment and historical background.
第一部分，网络生态危机问题分析。
分析了林、草在沙区生态环境中的作用及如何进行还林还草；
Then, the action of restoring forest or grass and its method are analysised.
论文第二部分是对工业生态化的理论分析。
The second part is the theoretical analysis for the industrial ecology.
采用科学史观简要分析了黄土高原生态环境演变的历史过程。
The process of eco-environment change was analyzed article with scientific view of history.
然后分析了原生态唱法的艺术特点和价值；
Then analyzed original ecosystem to sing art characteristics and value of method;
然后分析了原生态唱法的艺术特点和价值；
Then analyzed original ecosystem to sing art characteristics and value of method;
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