查询词典 ecosystems

And the deterioration or extinction of entire ecosystems on which many of the world's poorest people depend.

疾病的威胁以及整个生态系统的退化甚至消失，而这却是世界上许多最穷苦的人们赖以生存的环境。

In recent years, research on conservation and restoration of desert ecosystems has attracted widespread attention.

近年来，荒漠生态系统保护和恢复的研究已受到广泛关注。

A Study on the Effect Mechanism of Family Ecosystems on Development of Children's Mental Health.

家庭生态系统对儿童心理健康发展影响机制的研究。

As pioneer plants, desert spring ephemerals play an important role in community succession, biodiversity maintenance and dune stabilization in desert ecosystems. We studied the diurnal changes in gas exchange of three desert spring ephemerals (Eremopyrum orientale, Malcolmia scorpioides, and Tetracme quadricormis, hereafter the genus names only) under natural conditions in the desert area of the Dzungaria Basin.

采用LI-6400便携式光合测定仪，在晴天条件下对准噶尔荒漠3种典型短命植物东方旱麦草、卷果涩芥和四齿芥的气体交换特征的日变化规律进行了研究。

Epiphytic lichens, an important component of epiphytes, play vital roles in biodiversity sustainability, water and nutrient cycling in forest ecosystems.

附生地衣是森林附生植物的重要类群之一，在维护森林生态系统的物种多样性以及水分和养分循环等方面发挥着重要作用。

The degree of ecological risk is normally determined by risk source analysis,risk receptor selection,exposure and hazard analysis of the risk receptor,and an integrated risk assessment.The Shunyi District of Beijing with its five ecosystems was used as an example.

该文以北京市顺义区为例，从分析区域生态系统类型入手，计算不同生态系统类型的生态指数、脆弱度和生态损失度，根据不同种类和级别生态风险源的综合风险权重，运用ArcGIS软件进行叠加分析，形成了3146个生态风险小区。

An integrated chain analysis methodology was proposed to describe the profit possibility of firm-based industrial ecosystems,which combined material flow analysis and chain analysis of economic value.

案例研究表明产业链系统的物质循环利用帮助义马集团将其赢利率从其主业-煤炭采掘业的39%提高到整个产业链系统的80%。

Today's nimble companies rely on ecosystems of external innovation to drive new products to market; venture capital and private equity investors are eager to fund collaborative innovation for quick wins but have little appetite for long gestations for science.

如今敏锐的企业依靠外部创新生态系统来推动新产品上市，风投资本和私募股本投资者为了迅速获利而渴望投资合作开发的创新项目，但对周期长的科研项目毫无兴趣。

The Everglades has an amazing and magnificent array of ecosystems to explore, I love having the opportunity to Wet Walk in the Glades.

大沼泽有大量的非常吸引人的生态系统，让人探索，我一有机会就喜欢到大沼泽里去走。

The concept "better city" harkens to ecosystems, transportation, architecture and culture in cities, and evokes discussion about the role science, technology and education can play. Only by integrating all these elements can we achieve the goal of a ''better life.

当然，更好的城市往往令人想到的首先是城市形态、交通、建筑、生活环境等等，但再深一点就会想到科技、文化、教育和国民素质，只有这些内容的结合，城市才能使生活更美好。

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％。