查询词典 ecosystems

We have no conception of the importance of nonhuman life forms in sustaining ecosystems.

非人生物对于延续生态系统的重要性，我们一点都没有概念

A: Ecosystems have living and nonliving components.

生态系统有分有生命和无生命的构成要素。

Different laws have been passed by the Peoples Republic of China, the United States of America, the European Union and the World Health Organization to control over PAHs because of their wide-spread distribution in the environments and perniciousness to human health and the ecosystems.

对于海洋体系来说，PAHs主要来自大气干湿沉降和地表径流等外部输入，通过海水扩散和大气传输作用在整个海洋中传递，并能在生物体内富集，沿食物链放大，对生物产生极大危害。

Due to unique physiographic conditions and profound effects of human activities, Shiyang River Watershed has been facing the serious ecosystems degradation and ecological crisis, and being the typical ecological degradation area of inland watershed in the northwest China.

由于特殊的自然地理条件和不合理的人类活动，生态环境退化，出现了严重的生态危机，成为我国干旱区内陆河流域生态退化的典型和社会各界广泛关注的焦点。

It is a unique example of a complex of ecosystems, including tidal flats, floodplains, lowlands and plateaux, and provides a habitat for a wide range of rare or endemic species of plants and animals.

这是一家生态系统的联合企业的独特的例子，包括潮汐公寓，洪泛区，低地和高原，并且提供植物和动物的大范围稀有或者地方性的种类的一个栖息地。

As a special biological resource, water sustains the operations of all kinds of ecosystems in polder area, not only the elementary basic for human life and work, but also natural ecological structure, process and environment.

圩区内的水体作为一种特殊的生态资源，支撑和维持着区内各种生态系统的运行发展，不仅提供了人类生活和生产活动的基础资源，还具有维持自然生态系统结构、生态过程与区域生态环境的功能。

Predation is a very common process in natural ecosystems.

其中捕食是一种广泛存在的生态学交互作用。

As a prime element for human being, ecosystems and their management are of great importance.

生态系统作为人类生存条件的基础，其管理的重要性已被广泛认识和接受。

The most areas of Northwest China have unique biodiversity, sensitive to climate change, and the features of this regin are drought climate and vulnerale ecosystems. This region also plays an important role to maintain the bio-security on the regional, even national level.

我国西北大部分地区气候干旱、生态系统脆弱，对气候变化反应敏感，并在此脆弱的生态系统中孕育着独特的生物多样性资源，对维护区域乃至全国生态安全具有重要作用。

Soil respiration is influenced by many factors, which are different in a variety of spatio-temporal ecosystems.

影响土壤呼吸的因子有很多，在不同时间空间的不同生态系统其影响因子各不相同。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。