淡水

Some plants rely on wood part of the negative pressure, through its non-metabolic ultrafiltration to separate freshwater from seawater, such as K. candel, Ceriops tagal, etc.; Some plants, such as Avicennia marina, Aegiceras other is through their own system of salt gland salt inhalation secretion of the leaf surface, washed away by rain.

有些植物依靠木质部分负压力，通过其非代谢性超滤作用从海水中分离出淡水，如秋茄、角果木等；有些植物，如白骨壤、桐花等则是通过自身盐腺系统将吸入盐分分泌出叶片表面，经雨水冲刷掉。

They are all fresh water, however, new snow is extreme soft water, neutro-acidic, old snow is extreme soft awater, neutro-alkaline, and river water is alkaline soft water.

虽然它们都属淡水范畴，但新雪是中性偏酸的极软水，老雪是偏碱的极软水，河水则属碱性软水。

The results showed that the freshwater species were predominant, and 45 species of algal (5 phylums, 32 genera), in which 18 species of Bacillariophyta belong to 12 genera, 15 species of Chlorophyta one genus, 10 species of Cyanophyta 7 genera, and one specie of Euglenphyta and Chrysophyta; 37 species of zooplankton, in which 9 species of Protozoa, 14 species of Rotifera,...

结果表明，淡水种类占绝对优势，藻类5门32属45种，其中硅藻12属18种，绿藻1属15种，蓝藻7属10种，裸藻、金藻各1属1种；浮游动物共计37种，其中原生动物9种，轮虫14种，枝角类2种，桡足类8种，浮游幼虫及其它4种；底栖动物20种，分别为环节动物的多毛类7种，寡毛类2种，软体动物8种，甲壳动物2种，鱼类1种。

Batrachospermum longipedkellatum lives in fountain where water pH is 7.5, temperature is 17℃ in summer and 14℃ in winter with negligible fluctuation throughout the year. The Ca content is relative high with relative low other nutrient element content. Batrachospermum longipedicellatum.

长柄串珠藻是一种要求水温较低且恒定并适应光强较弱的小型淡水红藻，生存于pH7.5，夏天水温为17℃，冬天水温为14℃，全年水温波动不大，钙含量较高而其它营养盐分含量较低的泉水中。

But if that theory is correct then bdelloid rotifers, freshwater invertebrates that haven't had sex in at least 30 million years, should have been parasited into extinction long ago.

但是如果这个理论是正确的，那么蛭形轮虫（一种淡水无脊椎动物，它已经无性繁殖至少3000万年了）应该在很早以前就被寄生虫消灭了。

But if that theory is correct then bdelloid rotifers, freshwater invertebrates that haven't had sex in at least 30 million years, should have been parasited into extinction long ago.

但是如果这个理论是正确的，那么蛭形轮虫，这种至少已经存活了3千万年的无性繁殖的淡水无脊椎生物，应该早就因为感染寄生虫而灭绝了。

The researchers, based at Cambridge University, focused on bdelloid rotifers, female microscopic organisms that live in freshwater pools.

剑桥大学的研究者们对生活在淡水池塘中的雌性微生物蛭形轮虫进行了研究。

Bdelloid rotifers, microscopic asexual freshwater invertebrates are the ultimate escape artists, able to outpace their enemies by drying up and blowing away.

蛭形轮虫，只能在显微镜下观察的无性淡水无脊椎动物是最好的&脱身专家&，它们通过&干枯&和&随风吹走&来超越竞争对手。

Bdelloid rotifers (pronounced DELL -- oyd ROWtiff-ers) are tiny, freshwater invertebrates that have long puzzled scientists because, as completely asexual animals, they should have been extinguished by parasites and pathogens long ago in evolutionary time.

蛭形轮虫这种细小的淡水无脊动物已经困扰科学家们很长时间了，因为作为一种无性生殖动物他们在进化中早就应该因为寄生虫和病原体而灭亡了。

Gobbid fish Odontobutis potamophila (Günther was one kind of raptatorial benthonic fish in Taihu Lake.

河川沙塘鳢Odontobutis potamophila(Günther，Gobbid fish属鲈形目，塘鳢科，俗名塘鳢鱼，为淡水底栖小型野生肉食性鱼类，分布于我国长江水系中下游、钱塘江、闽江等水系。

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。