淡水

Any of several freshwater bivalve mollusks of the genera Anodonta and Unio, found in the central United States, that burrow in the sand or mud of lakes and streams.

淡水蚌发现于美国中部的无齿贝属和珠蚌属几种淡水双壳软体动物的一种，在湖和河中的沙中或泥中挖洞

Mictyris longicarpus, Arachnoides placenta and Branchiostoma belcheri are only distributed in the sandy sediments outside the bay and in outer bay...

咸水草是感潮河段咸淡水指标种。河蚬虽是淡水种，也分布在低盐河段。

In this study,an experimental modelwas developed and established with freshwater crayfish Cambarus clarkii to prolif-erate White Spot Syndrome Virusin vivo.The success and reliability ofthis model was confirmed by transmission electron microscopy,dot-blotand hybridization in situ etc.

本研究在阐明WSSV对常见淡水甲壳纲动物的侵染活性的同时，成功地建立了WSSV淡水克氏螯虾体内增殖模型，并通过电镜技术、核酸探针斑点杂交与原位杂交等手段证实所建立的增殖模型的可靠性。

Abstracts With white spot syndrome virus isolated from disease shrimp Penaeus chinensis, some of freashwater prawn and crabs: crayfish Cambarus clarkii, Macrobrachium rosenbergii, Macrobrachium nipponensis, Eriochier sinensis, Sinopotamon yangtsekiense were selected to be artificially infected.

应用对虾白斑综合征杆状病毒，对淡水克氏螯虾、罗氏沼虾、日本沼虾和两种淡水蟹(中华绒螯蟹、长江华溪蟹)进行人工感染实验。

Dr Kennett worked on the idea that at the start of the Younger Dryas a huge lake of fresh water suddenly breached a wall of ice that had confined it, and flowed into the northern Atlantic Ocean.

Kennett博士指出，在新仙女木期之初，曾经有一个庞大的淡水湖中的淡水瞬间突破了限制它的冰山大坝，并流入北大西洋。

, and between L vexillifer and Neophocaena phocaenoides is 15. 03%(49/326bp). Two phylogenetic trees, constructed by using sequence data, suggest that Lipotes vexillifer does not share a direct common ancestor with Inia geoffrensis, thus provide molecular evidence in favor of the establishment of family Lipotidae, extant river dolphins might be a group of species with

系统发育分析结果表明：白暨豚与亚河豚没有直接共同的祖先，从而为白暨豚科的建立提供了有利的分子证据；现存的淡水豚类可能仅是外形上相似的物种群，Muizon（1984，1988a，1988b，1990）关于各类淡水豚分属于不同的总科的建议，从分子进化的角度看是完全可能的：抹香鲸类可能是最早从古鲸类中分化出来的类群。

Brazilians may prefer to focus on a recent business deal. On May 2nd Norsk Hydro announced that it was acquiring the aluminium assets of Vale, the world's second-largest mining company.

巴西人则可能更喜欢把重点放在最近的一宗商业交易上。5月2日，挪威海德鲁公司宣布正在运作并购淡水河谷公司旗下的铝资产，淡水河谷公司是世界第二大矿业公司。

From this movie, I see many mobile and artificial look for land, jump a claim fresh water realm, usually infringe upon those luckily survive come down of mankind, because at there is a little girl in these people and have a huge secret on her body-----There is a tatoo on her body, that is to lead to terrestrial map so those mobile talented persons come to and attackstone them, having soil then can become the fresh water to the sea water evolution......

从这一部电影中，我看见许多机动人为了寻找陆地，霸占淡水领域，经常去侵犯那些幸存下来的人类，因为在这群人里有一个小女孩，在她的身上有着巨大的秘密-----她的身上有一个刺青，那是通往陆地的地图所以那些机动人才来攻击他们，有了土才能把海水进化成淡水。。。。。。

Brachionus calyciflorus is a common specie in freshwater ecosystem, and has important status in structure construction, material cycle and energy transportation in freshwater ecosystem.

萼花臂尾轮虫是淡水常见轮虫种类之一，在淡水生态系统的结构组成、物质循环和能量传递过程中具有重要的作用。

The beach body of Lower Triassic Feixianguan Formation in northwestern Sichuan can be divided into platform marginal oolitic beach and intraplatform point beach. The water is relatively deeper at the forming of most of platform marginal oolitic beach which is not transformed by the diagenesis of fresh water and mixed water and has poor reservoir properties. However, a part of oolitic beach formed under shallow water environment, and it is transformed by the diagenesis of fresh water and mixed water and well dolomitized, which can form excellent reservoir.

川西北下三叠统飞仙关组滩体分为台地边缘鲕粒滩和台地内点滩2种类型，多数台地边缘鲕粒滩形成时水体相对较深，未经大气淡水和混合水的成岩改造，储集性能较差，局部鲕粒滩形成时水体较浅，在经过大气淡水和混合水的成岩作用改造后，白云石化好，可形成储集性能极好的储集体；台地内点滩白云石化较好，储集性能也较好，但分布狭窄，厚度较薄，无规律可寻。

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。