全部

1·A number of scientists question the assumption that the presence of alien species can never be acceptable in a natural ecosystem.

一些科学家质疑这样的假设，即在自然生态系统中，外来物种的出现是绝对不会被接受的。

2·His tanks are part of a system very different from a fish farm or natural ecosystem.

Schreibman的鱼缸是某套系统的其中一部分组件。

3·The Scene system of the city should respect natural ecosystem ecosystem environment of the city.

城市的景观系统应尊重城市的自然生态生态环境。

4·The scenery scenic spot area ecosystem not only is a natural ecosystem, but also is a society ecosystem.

风景名胜区生态系统不仅是一个自然生态系统，也是一个社会生态系统。

5·Termite is an important species in the natural ecosystem Its activities interact with soil environment in many ways.

白蚁是自然生态系统中的一个重要物种，白蚁活动与其环境土壤之间具有多种多样的相互作用。

6·Wild animals are the important components of the natural ecosystem, theprecious wealth which universe altogether has.

野生动物是自然生态系统的重要组成部分，是全人类共有的宝贵财富。

7·They can actually put this in their natural ecosystem without any processing, and it's going to improve the local soil.

它们可以无需任何处理就放进当地生态系统中，改善当地土壤质量。

8·Wetland, considered as a natural ecosystem and landscape style, has great resource potentiality and environmental function.

湿地是自然界的生态系统和景观类型，具有巨大的资源潜力和环境功能。

9·The natural ecosystem landscape is made of micro soil erosion and different soil erosion intensity district in soil erosion region.

从土壤侵蚀角度看，自然生态系统景观由微度土壤侵蚀和其它等级土壤侵蚀强度的地域组成，其景观基本元素有斑、廊、基。

10·They live in the nature preserve the technical details, they are in harmony with nature, a natural ecosystem in the reasonable part.

他们保存了在大自然中生存的技术细节，他们与自然和谐相处，成为自然生态中合理的一环。