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hydrological conditions
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  水文条件
     Allowable charging load at different hydrological conditions and differentwater area with quality restricted by use of Jiujiang reach in the Yangtze River is calculated byusing optimum model.
     本文从实际应用出发,提出了近岸区可分配水环境容量的计算方法,并利用优化模型计算了长江九江段不同水文条件和不同水质限制使用区范围的允许排放负荷。
短句来源
     The key factors influencing carbon accumulation and decomposition are vegetation community, temperature and hydrological conditions ( especially water table).
     影响湿地中碳积累与分解过程的重要控制因子是温度、水文条件和植物群落,特别是水文条件对湿地碳循环过程影响较大。
短句来源
     ②To improve the hydrological conditions of six lakes;
     ②改善“六海”的水文条件;
短句来源
     Through analyzing on the hydrogeology characteristics,the pouring water mechanism and situation at face 22080,find the reasons of pouring water,and adopt the effective prevention measures to ensure safe actual mining at combined mining face and gained beneficial experiences for similarly hydrological conditions.
     通过对 2 2 0 80工作面水文地质特征、出水机理及涌水情况分析 ,找出了出水原因 ,采取并实施了矿井治水措施 ,保证了综放面的安全回采 ,为其他矿井类似水文条件下综采放顶煤开采提供了有益的经验
短句来源
     Our observations indicate that these seasonal and annual variations are mainly controlled by the changes of surface primary productivity and hydrological conditions related to the East Asian monsoon.
     研究表明这种季节和年际变化主要受与东亚季风相关的表层初级生产力和海洋水文条件变化的控制
短句来源
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  “hydrological conditions”译为未确定词的双语例句
     when the atmospheric circulation greatly changes (e.g. from glacial stage to interglacial stage), the Mg/Ca, Mg/Sr ratios are mainly controlled by the hydrological conditions.
     而当大气环流系统发生显著变化时 (如出现冰期和间冰期的显著变化 ) ,Mg/ Ca和 Mg/ Sr比值则主要取决于水文地质条件 ,即降水条件的变化。
短句来源
     Notes on response of coastal waters to typhoon passage Ⅰ.Response of Daya Bay hydrological conditions to Typhoons No.8708 and No.8710
     近海对台风的响应注记──Ⅰ.大亚湾海况对8708和8710号台风的综合响应
短句来源
     2. The rock types, climate patterns, lake basin and hydrological conditions in this region are contributory to the enrichment of trace elements in salt lake waters.
     2.区域出露的岩性、气候、湖盆及水文等为盐湖水中富集痕量金属创造了有利条件。
短句来源
     Technology of comprehensive water prevention and control for mine shaft sinking under complicated hydrological conditions
     复杂水文地质条件下立井掘凿综合防治水技术
短句来源
     According to the economic developing status, the city planning, the ecological stability of the bay and different hydrological conditions, the Anhai Bay was divided into four masses.
     考虑安海湾周边的城镇现状与发展规划、社会经济发展状况、湾内不同区块海域生态稳定性差异,以及水动力条件等,对安海湾海域进行了区块划分。
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  相似匹配句对
     The conditions for E.
     对质粒稳定性的研究表明,E.
短句来源
     The Hydrological Conditions of Dingzi Bay
     丁字湾水文环境特征
短句来源
     V.conditions.
     V条件.
短句来源
     Hydrological conditions in estuaries are very complex and unique.
     潮汐河口的动力条件有其特殊性。
短句来源
     Research on hydrological regionalization
     水文区划问题研究
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  hydrological conditions
The method of ecological water level emphasizes that wetland ecosystem adapts to the hydrological conditions, so it can be used in practice well.
      
The highest growth rate, primarily dependent on hydrological conditions, was observed in mussels from the Chupa Bay (Levin Navolok fishery), while the lowest rate was observed in mussels from the Umba region (Turii Cape, Murmansk Region).
      
A unique relationship between the change in the temperature condition on the stationary acoustic route and the times and angles of arrival of the acoustic energy is determined under controlled hydrological conditions.
      
The final stage of the fouling development is determined, apparently, by hydrological conditions.
      
The analysis has been carried out for the hydrological conditions of several reservoirs of seasonal and year-to-year regulation in the Czech Republic.
      
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In this peper, the author demonstrates the factors which affect the water-resistance of compacted soils, especially the degree of wetting by euviroments and the degree of compaction. It revealed the possibility, through laboratory test that at arid vegiuns (little possibility of wettiug or good hydrological conditions) the soil in embanbment could be compactell at the mois ture content below the optimum, and the wet-strength of compacted soil is higher than that at optimum. The author had also made the...

In this peper, the author demonstrates the factors which affect the water-resistance of compacted soils, especially the degree of wetting by euviroments and the degree of compaction. It revealed the possibility, through laboratory test that at arid vegiuns (little possibility of wettiug or good hydrological conditions) the soil in embanbment could be compactell at the mois ture content below the optimum, and the wet-strength of compacted soil is higher than that at optimum. The author had also made the wetting and drying test of compacted. soil and found that the higher the degree of compaction, the larger the water-resistance of the compacted soil. The results of this research would be usefal to solve the compaction problems at arid regions.

压实士在润湿作用后的表现如何,要看润湿作用的强烈程度和路基土的压实程度而定。在西北缺水地区,由于湿源不足,路基土可以在低于最佳含水量时压实。此时,压实土在润湿后的强度反较在最佳含小量值时压实的小。借助于增加压实工作量而获得的高密实度的土,在反复干湿的作用下,是能保持较高的水稳定性的。因此,在缺水地区我们可以在较低的天然湿度下进行压实;同时也可以用较重的来压实工具压实,此时可获得高强度的土。

On the Pearl River Delta, the stream flow furnishes ample water supplies to meet the irrigation requirements. Experience shows that the yield on ricefield amply supplied with water is more in dry years than in wet years owing to more extensive utilization of sunlight. For this reason it is profitable to design the pumping plants to satisfy the irrigation requirements to the utmost extent. Since the variation of low water level in the river-netted region is often rather limited, adopting a maximum head for the...

On the Pearl River Delta, the stream flow furnishes ample water supplies to meet the irrigation requirements. Experience shows that the yield on ricefield amply supplied with water is more in dry years than in wet years owing to more extensive utilization of sunlight. For this reason it is profitable to design the pumping plants to satisfy the irrigation requirements to the utmost extent. Since the variation of low water level in the river-netted region is often rather limited, adopting a maximum head for the pumping plant according to the lowest water level would only slightly increase the capacity and this would be well compensated in dry years. The planning of the pumping plants should fit the natural conditions such as topographical and hydrological conditions. In the river-netted region, the most favorable arrangement has been shown to be employing scattered small plants each carrying a small lot. It is usually advantageous to design plants serving for both drainage and irrigation. Sometimes, portable pumps working together with permanent plants may proved to be convenient. The necessity and possibility of the collaboration of pumping plants with other types of waterworks should always be well considered. In addition to overcoming the disaster caused by drought and flood, the electric pumping plants serve as an active device for more efficient irrigation and drainage, thus afford the possibility of lengthening the cultivating season, and adopting the most appropriate cultivating system and most suitable species of crops. The electric pumping irrigation and drainage on the Pearl River Delta presents a promising aspect for increasing the agricultural production.

本文首先分析了珠江三角洲河口网河区原有排灌条件,确定兴建电力排灌工程的必要性,并论述了电力灌溉可按照完全满足用水要求的高标准设计,而电力排涝则宜于采用较低标准。关于排灌站的布置,建议以划分小区分散建站为主要形式,并应注意排水与灌溉相结合,流动抽水机与固定站相结合,电力排灌与其他水利工程结合的必要性与可能性等。

Hydrological conditions of the Han River display obvious change with constructing

1.汉江产漂流性卵的鱼类至少有25种,其中经济鱼类有草鱼、青鱼、鲢、鳙、鯮、鳤、鳡、长春鳊、赤眼鳟、铜鱼、吻鮈、鳜以及三种红鲌属鱼类。2.产漂流性卵鱼类开始产卵的水温分别在16—20℃之间,经济鱼类多在18℃上下。产卵时需要有江河的涨水过程。在河流涨水的诸水文要素中,流速的增大,对促使产卵起着主要作用。不同的鱼类产卵时对流水的要求是有差异的。鱼类的产卵规模与江水的流速增大紧密相关。3.丹江水库建成后,上游的产卵场有前房、天河口和安康等10处。中游有钟祥和马良等7处,支流唐河、白河也有产卵场。就总产卵量来看,上游1977年为1745.9亿粒,中游1976年为47亿粒。上游为中游的37倍。其中,四种家鱼的产卵量,上游为171.3亿粒,中游为9.3亿粒。4.丹江口水利枢纽对汉江上游产漂流性卵鱼类繁殖的影响,主要表现为给上游提供了规模较大的繁殖群体。另一方面,由于主要产卵场分布在接近水库的江段,致使占上游总产卵量90%的鱼卵在孵化前随江水流入水库,有一部分鱼卵会受到损失。对中游的影响主要是由于水库的低温水和大坝对径流的调节,改变了中游的水文条件,导致产卵场的变迁,繁殖季节推迟和产卵规模缩小。总的来看,对上游的影响明显...

1.汉江产漂流性卵的鱼类至少有25种,其中经济鱼类有草鱼、青鱼、鲢、鳙、鯮、鳤、鳡、长春鳊、赤眼鳟、铜鱼、吻鮈、鳜以及三种红鲌属鱼类。2.产漂流性卵鱼类开始产卵的水温分别在16—20℃之间,经济鱼类多在18℃上下。产卵时需要有江河的涨水过程。在河流涨水的诸水文要素中,流速的增大,对促使产卵起着主要作用。不同的鱼类产卵时对流水的要求是有差异的。鱼类的产卵规模与江水的流速增大紧密相关。3.丹江水库建成后,上游的产卵场有前房、天河口和安康等10处。中游有钟祥和马良等7处,支流唐河、白河也有产卵场。就总产卵量来看,上游1977年为1745.9亿粒,中游1976年为47亿粒。上游为中游的37倍。其中,四种家鱼的产卵量,上游为171.3亿粒,中游为9.3亿粒。4.丹江口水利枢纽对汉江上游产漂流性卵鱼类繁殖的影响,主要表现为给上游提供了规模较大的繁殖群体。另一方面,由于主要产卵场分布在接近水库的江段,致使占上游总产卵量90%的鱼卵在孵化前随江水流入水库,有一部分鱼卵会受到损失。对中游的影响主要是由于水库的低温水和大坝对径流的调节,改变了中游的水文条件,导致产卵场的变迁,繁殖季节推迟和产卵规模缩小。总的来看,对上游的影响明显的有利,对于中游则不利的影响要多一些。5.根据产漂流性卵鱼类繁殖的生态习性和汉江的条件,可以认为,在汉江和类似汉江的条件下,兴建水利枢纽可以不必附建过鱼建筑物。为了充分发挥水体的渔业效益,水库区应做好渔业规划,加强经营管理。水利枢纽的下游需充分重视改变了的水文条件,特别是低温水对鱼类生活的影响,以采取补救措施。

 
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