Consider of water ecosystem protection and characteristics of ultrasonic technology, low frequency and low power ultrasonic especially suit to control algal growth in water body.
超声波的空化作用能够抑制藻类生长，从保护水体生态系统以及超声波技术本身的特点考虑，低频率、低功率的超声波更适合于水体抑藻应用。
A study published in the December 2009 Ecological Applications shows that keeping more fish in the sea may give an ecosystem some protection against unwanted algae.
在2009年12月号生态学应用杂志上发表的一项研究显示海中鱼类增多可保护生态系统不受讨厌的海藻污染。
Maritime security and protection of the fragile Arctic ecosystem will also be hot items on the agenda at the May 28 meeting.
海事安全和保护北极脆弱的生态环境也是5月28日会议议程的重要议题。
Dalinor, perched in Chifeng City of the Inner Mongolia Autonomous Region, is an important wetland ecosystem in Asia and a state-level nature reserve designated for the protection of rare species.
达里·诺尔自然保护区位于内蒙古自治区赤峰市，它是个亚洲重要的湿地生态区和国家级的以保护珍稀动植物为目的的自然保护区。
The concept of healthy rivers lays emphasis on the importance of protection of river ecosystem and also accepts the rationality of appropriate development of water resources.
河流健康的概念既强调了保护河流生态系统的重要性，也承认人们适度开发水资源的合理性。
In the paper, the types, characteristics, planning and evolution of wetland ecosystem in Yellow River Delta have been analyzed, and its protection has been discussed.
本文对黄河三角洲湿地生态系统的类型、特征、演替、演化进行了分析，并探讨了有关保护对策。
The riparian zone is a functional transition region, the last protection barrier of lakes, which is connected the lake aquatic ecosystem and the terrestrial ecosystem.
湖滨带是连接湖泊水域生态系统与陆地生态系统的一个功能过渡区，是湖泊的最后一道保护屏障。
Zalong and Xianghai national nature protection zone in Song-Nen plain is most integrated wetland ecosystem in the mid temperate zone of China.
松嫩平原扎龙、向海国家级自然保护区是我国中温带最完整的湿地生态系统。
So we have to strengthen sea areas management, prevent pollution and combine exploitation with protection in order to protect and restore the ecosystem services.
因而为了保护和恢复其生态系统服务功能，须加强近海海域管理、防冶污染、实行开发与保护相结合。
Reefs play an invaluable role in the marine ecosystem, harboring hundreds of species of marine life that rely on them for food, shelter, and protection.
水下风景图片美术馆。暗礁扮演一个无价的角色在海洋生态系统，怀著对许许多多的海洋生物的物种依靠它们给食物，庇护所，和保护。
The protection of top soil layer has utter most importance in protection of grassland resources and ecosystem, and in prevention of sandy desertification.
保护地表土层对于保护草地资源和生态环境，以及沙漠化防治具有极端重要性。
Wetland ecosystem as juxtaposed with forests and sea of global ecological system, and is one of the three global climate and environment protection plays an extremely important role.
湿地生态系统作为与森林和海洋并列的全球三大生态系统之一，正在保护全球气候和生态环境方面发挥着极其重要的作用。
The expansion of cities, towns and roads were the main causes of the values' decrease. Despite this aspect, the land-use policies are positive in protection and maintain the balance of ecosystem.
土地利用政策评价在保护、维持生态系统服务功能价值方面起到了积极的作用。
Besides the natural factors, defects in the administration of Dunhuang also add difficulties to the protection of the ecosystem there, according to the official.
根据官方表示，除了自然因素外，敦皇的管理部门的失误也阻碍着那里的环境保护进程。
The protection zone is the only zone Zhongyuan preserve the integrity of the forest ecosystem and wildlife areas.
该保护区是中原地带唯一保存完整的森林和野生动物类型生态区。
Initiate an all the people activity, raise the environmental protection consciousness of tour, practice an ecosystem tour.
倡导全民行动，提高旅游的环保意识，实行生态旅游。
Initiate an all the people activity, raise the environmental protection consciousness of tour, practice an ecosystem tour.
倡导全民行动，提高旅游的环保意识，实行生态旅游。
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