淡水

In the condition of lacking fresh-water resources,the conflict of contend for it will become more and more acute .

当今世界，国际利益冲突层出不穷，其表现形式多种多样，在淡水资源日益匮乏的情况下，争夺淡水资源的冲突将会越演越烈，国际河流的水资源利益冲突势必为焦点所在。

Brazil is home to 12% of the world's freshwater reserves, the highest percentage on earth.

巴西是淡水储备最多的国家，占世界淡水储量的12%。

The gaur, a wild relative to the cow, is a threatened species found in South Asia.

淡水豚总科属鲸目，拥有四个栖息于淡水河流及河口的现存海豚科品种：当中三个生活在淡水河中，而另外一个品种，即普拉塔河豚则是生活在咸水河口及近岸海洋。

The basal diameter, height of aerial stem, leaf length at middle stem, leaf width at middle stem, internode length at middle stem, internodes number and panicle length of 30 plants from every population were recorded. The statistics of morphological characters showed that the distribution trends of the averages of morphological characters are similar among populations. However, the coefficients of variation within population of 7 morphological characters were very different. The CV of internodes was largest and the CV of height was smallest within population. F-statistics showed that the differences of all morphological characters among populations were significant (P.01). But the differences among populations were different between different groups. The cluster analysis proved that all populations could be divided into three types: salty reed, freshwater reed and giant reed.

对来自每个种群的30个个体的基径、株高、中部叶长、中部叶宽、中部节间长、节间数、穗长7个形态特征的统计分析表明：各形态特征平均值在种群间的分布趋势相似，但变化幅度不同，株高、叶长等营养特征变化较大大，生殖特征穗长的变化较小；7个形态指标在种群内的平均变异度从大到小依次为中部节间长、中部叶宽、穗长、中部叶长、基径、节间数、株高，种群内的平均形态变异度与生境异质性有关；7个形态指标在种群间均差异显著，但多重比较分析显示显著差异主要存在于BZH、淡水生境种群和盐渍化生境种群之间，在相似生境种群间的形态差异不显著；以形态特征为依据的聚类分析支持将15个种群分为三类：盐生芦苇、淡水芦苇和巨型芦苇。

This area is abundant in the supply of sea water and fresh water, which is ideal for the fish culture with sea water or fresh water.

海淡水水源充足，水质清晰，无污染，是发展海淡水养殖的良好场所。

With the decreasing labefaction of our environment, the useable fresh water is facing pollution and becoming exhausted in the large-scale, and shortage is a threat to the whole world as well.

但是，当今随着人类生态环境的日益恶化，世界可用淡水资源正在逐渐枯竭并普遍受到人为污染，全世界正面临着可用淡水资源短缺的威胁。

A few limnetic hydrophytes pollen are counted for all zones, indicating a freshwater habitatsince 3.6 ka BP in this region.

整个剖面自下而上都有一定量的淡水水生植物出现，这反映了该剖面3 ka BP以来一直处于淡水沼泽的环境中。

Minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants.

微小的圆锥状腹足动物，表面象帽贝但生活在淡水中并以淡水植物为食。

Physiological Responses of Hybrid Striped Bass to Aqueous Copper copper is an abundant trace metal, and although essential at low levels, it is also potentially toxic to aquatic organisms.Mechanisms of toxicity and consequences of exposure vary depending on ionoregulatory status(acclimated to freshwater or salt water).The goal of this research was to examine the responses of hybrid striped bass(Morone chrysopsXMorone saxatilis)exposed to Cu in freshwater and 15g/L salt water.In freshwater,a general dose-and time-dependent pattern of increasing Cu accumulation in gill tissue was evident in fish exposed to aqueous Cu(220 and 447 mg/L)for up to 96 hours.The 96-horu acute median lethal concentration for freshwater-acclimated hybrid striped bass exposed to Cu was 94mg/L(confidence interval=62 to 144mg/L).

生理反应到水的混合条纹鲈鱼铜是一个丰富的微量金属，虽然至关重要，它是在较低的水平也可能对水生生物有毒毒性机制及其后果的曝光取决于ionoregulatory状态，本研究的主要目的是为了检查的反应chrysopsXMorone混合条纹鲈鱼暴露于铜在淡水和15 / L盐水在淡水，一般dose-and时变模式日益增长的铜积累鱼鳃组织显然暴露于含水的铜(220和447毫克/升)长达96小时96-horu致命的平均浓度为freshwater-acclimated急性混合条纹鲈鱼暴露于铜被94mg / L(=置信区间来144mg / L)62 osmolatity、钠浓度降低。

This paper studies pyrogenation of freshwater breeding nacre and mussel,and discusses the influence of shell on the pyrogenation process of macromolecule material.

本文研究了淡水养殖珍珠贝和淡水蚌壳的热分解行为，并且探讨了贝壳对高分子材料热降解行为的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。