湖泊的
- 与 湖泊的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Appearance of water bloom together with eutrophication endangers drinking-water safety, aquiculture and lake environment.
伴随着湖泊富营养化而出现的藻类水华对饮用水安全、水产养殖以及湖泊环境造成了巨大危害。
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It is bordered by the Arctic Ocean to the north and has a northwestern boundary with Alaska.
著名湖泊有大熊湖、大奴湖和休伦湖、安大略湖等,是世界上湖泊最多的国家之一。
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Instead, Brook Trout are mainly found in the Western United States in the colder rivers and lakes of the Rocky Mountains - especially in higher lakes that often require hiking to reach.
反而布鲁克鳟鱼主要存在于美国西部在寒冷的河流与湖泊在土石山区,特别是在高山湖泊,往往需要达成。
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In fact Yellowstone Lake is one of the largest high-altitude lakes in North America, and is located over the Yellowstone Caldera volcano.
事实上,黄石湖泊是北美最高最大的湖泊之一,位于黄石火山喷口处。
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Is a highland lakes, for lakes in Sichuan Province, one of the largest.
属高原湖泊,为四川省最大的湖泊之一。
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Biomarkers become an effective tool in the research of the lacustrine environment.
评述了湖泊沉积生物标志物在湖泊环境变化中的研究现状及应用前景。
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Data collected by a satellite launched in 2003 - the Ice, Cloud Land Elevation Satellite, or ICESat - revealed a complex network of subglacial plumbing in which water periodically cascades from one hidden reservoir to another.
美国宇航局2003年发射的"冰云和地面高度卫星"收集的数据显示,南极冰层下有一个复杂 www.dDdtt.com 的湖泊排水网络,湖水会周期性地从一个隐秘的湖泊流向另一个湖泊。
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In this paper, two dimensional shallow flow—pollutants coupled model, which applies uninstructed grid finite volume method and Riemann approximate solver, is used to gain the trend of hydrodynamics and water quality change under the condition of driving force. Mechanism of nitrogen and phosphorous circle of WASP5 is considered in the water quality part of the model according to nutrition actuality of shallow lake in the cities.Xuanwu Lake is object of research in this paper.
本文针对城市浅水湖泊富营养化加剧现状,结合WASP5模型中有关氮和磷的循环机理,并将该机理写入已有的二维浅水流体水量模型中加以耦合,应用在无结构网格下的有限体积法与黎曼近似解求解的方法,求解湖泊在外驱动作用下的湖泊水动力和水质因子氮和磷的变化。
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Here, we took demonstration study of the ecological impacts of disconnection from the river on fish recources in Zhangdu Lake. Our results showed that:(1) Fishery mode changed and the rate of wild fishery production changed from 95% in 1949 to less than 5% in 2002.(2) Fish species have decreased from 80 in 1950s to 52 at present, and the rate of migrant and potamic species decreased from 50% in 1950s to 30% at present.
我们以涨渡湖为例开展江湖阻隔后对单个湖泊鱼类资源所产生的生态影响进行研究,结果表明:江湖阻隔导致湖泊生产经营方式改变,使得野生渔业产量的比例由1949年的95%,降低到2002年的不足5%;江湖阻隔后湖泊鱼类种类由50年代约80种下降到现在的52种,其中,洄游性和流水型鱼类比重由50%下降至不足30
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In this paper, the characteristics and the principals of the digitalizing Erhai lake geo-spatial analysis are outlines firstly.
本文首先分析了数字湖泊地理空间分析的特性和基本方法,研究了紧耦合和松耦合两种建模方式;然后对湖泊区域数字地形的多尺度表达问题进行了研究,最后提出了湖泊区域不同尺度空间数据的组织方式和数据库建立的方法与技术路线。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力