In good ecosystems , resources are used many times.

在良性生态系统中，资源会多次使用。

属类：学习英语-教材英语-高一课文

Research Advances about Effects of Enhanced UV-B Radiation on Plants and Ecosystems

增强紫外B辐射对植物及生态系统影响研究的发展趋势

属类：行业术语-中文论文标题-

New Development in Strategic Management: Competitive Strategy Based on the Business Ecosystems

战略管理新趋势:基于商业生态系统的竞争战略

属类：行业术语-中文论文标题-

These creatures keep our ecosystems running and make up the majority of our planet’s population!

正是这些从数量上占据地球生物绝大多数的物种在维持着地球生态系统的运转。

属类：社会文化-新闻文章-虫虫大军

Organic Nitrogen Use by Plants and Its Significance in Some Natural Ecosystems

植物对有机氮源的利用及其在自然生态系统中的意义

属类：行业术语-中文论文标题-

Progress of Research on Carbon Fixation and Storage of Forest Ecosystems in China

中国森林生态系统碳平衡研究

属类：行业术语-中文论文标题-

Problems of Grassland Ecosystems and Their Countermeasures in Western China

中国西部草原生态环境问题及其控制措施

属类：行业术语-中文论文标题-

The Effect of Transgenic Plants on Rhizosphric Soil Ecosystems

转基因植物对根际土壤生态系统的影响

属类：行业术语-中文论文标题-

The plants of natural ecosystems are usually well adapted to the edaphic and climatic character of their region

自然生态系统的植物，通常十分适应当地的土壤和气候特点。

属类：综合句库--

Natural and agricultural ecosystems form a continuum

自然生态系统和农业生态系统构成一个连续的统一体。

属类：综合句库--