查询词典 ecosystems

With one of the most vibrant underwater ecosystems in the Caribbean, Dominica offers scuba divers aquarium-clear water with visibility that can reach 100 feet (30 meters).

拥有加勒比海最具活力的水下生态系统之一，多米尼加为水肺潜水者们提供了能见度达到100英尺(30米)，如水族馆般清洁的水体。

The goal of this seminar is to explore the role of science and scientists in ecosystems and natural resources management focusing on joint fact finding as a new approach to environmental policy-making.

专题讨论的目的在于探讨科学以及科学家在生态系统和自然资源管理中所扮演的角色，其重点在于使用共同事实发现作为环境决策的新方法。

When it comes to protecting the planet and our delicate ecosystems from poisons, talk is cheap.

讲到保护我们的星球和脆弱的生态体统远离污染毒物……说得容易做得难。

Many biotic and abiotic factors are easily controlled in greenhouses, so the experiments can be replicated and the simulated research on the mechanisms of varied stress factors affecting natural complex ecosystems can be carried out conveniently.

温室内很多环境因子和生物因子是相对可控的，试验研究易于重复，方便开展各类胁迫因子对复杂生态系统影响机制的模拟研究，可作为一类中等尺度的mesocosm。

Organisms in most ecosystems from a complex network of interconnected food chains called a food web.

在大多数生物的生态系统由一个复杂的网络互联食物链称为食物网。

Forest ecologists have been more concerned than agronomists with the inner mechanisms of natural and artificial ecosystems.

森林生态学家比农学家更关心天然生态系统和人工生态系统的内部机制。

No one would suggest that the malaria-carrying mosquitoes be allowed to function naturally in their various ecosystems,or that the tsetse fly and the locust should be permitted to "do their own thing" and destroy livestock and crops.

&没有人会提出这样的建议：携带疟疾的蚊子在它们的种种生态系统中自由活动，采采蝇任意飞舞，蝗虫任意妄为，损害家畜和庄稼。&

While mass extinctions are taking place in natural ecosystems, the same has taken place in domesticated seeds.

而大规模的灭绝事件发生的自然生态系统，同时已发生了驯化种子。

By utilizing the micrometeorology data of net radiation, soil heat flux, and CO2 concentration at two heights, temperature, relative humidity, and wind speed measured by the Japanese and Chinese cooperation team at Naiman District of Inner Mongolia, this paper presents a study of the characteristics of CO2 flux and concentration from different ecosystems (namely dune, grassland, light grazing site, medium grazing site, heavy grazing site, maize field and soybean field).

本文利用1993～1994年日本国家农业环境研究所与中国科学院沙漠研究所合作在内蒙古奈曼地区实测的7种不同生态系统（沙丘、轻度放牧草原、中度放牧草原、重度放牧草原、无放牧草原、玉米田和大豆田）的净辐射、土壤热通量、两个高度的CO2浓度、温度、湿度和风速等资料，采用空气动力学方法，计算了CO2通量及其与环境和人为干扰因子的关系，并分析了不同下垫面的光合作用特征。

U.S. Global ocean ecosystems dynamics is a component of the U.S. Global Change Research Program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea.

&美国全球海洋生态系统动力学研究计划&由海洋学者、渔业专家组成，是&美国全球变化研究计划&的一部分，主要研究全球气候变化对海洋生物的丰度和生产量的影响。

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％。