Starting from the theoreticalecology, the characteristics of the engineering project system is similar to the ecosystems.
从生态学的理论出发，工程项目系统具有和生态系统相似的特征。
2
The thoughts of literature and art ecology in Yang Qi are universally true, and hence even today they still have important practical and theoretical values.
《养气》篇的文艺生态学思想具有普遍的规律性，因而在今天仍有重要的实用性和理论借鉴价值。
3
Forest insect ecology is the theoretical basis of integrated management of forest pests.