淡水

It amounts to precious little water, less than half a percent of the world's water supply. Yet it is vital to the survival of humans and a wide range of critters from dragonflies and piranhas to beavers and bullfrogs.

淡水是极其珍贵又稀少的资源，占世界储水总量不到0.5%，但是对人类和大部分生物而言，却是至关重要的，比如从蜻蜓和水虎鱼到海狸和牛蛙等。

Alligators and caimans have lost much of this osmotic ability to secrete excess salt through the tongue glands, and can only tolerate it for short periods of time, prefering to remain in freshwater areas when possible.

短吻鳄和caimans已经失去了很多的渗透能力，分泌过多的盐，通过舌腺，只能容忍它的很短的时间内，宁愿留在淡水领域的可能时。

However, researchers found that piranha most likely group together as a defense against such predators as river dolphins, caimans and bigger fish, and not to engage in feeding-frenzies.

然而，研究者们发现，食人鱼群集的时候多数情况是防御那些如淡水豚、鳄鱼和大型鱼等掠食者的攻击，而不是进行食物猎取。

Yet there are some life forms, like the red algae "Cyanidium caldarium", that have adapted to survive, and even thrive, in the most acidic of conditions, such as the hot volcano pools found in Yellowstone National Park.

然而某些生命形式如&淡水单细胞红藻&就能在强酸性环境（如：黄石国家公园的酸性热泉）中生存并且迅速繁殖。

Any of several common freshwater catfishes of the United States.

几种常见的美国淡水鲇鱼。

Cenotes are freshwater sinkholes usually found on the Yucatán peninsula.

天成井是淡水的排水口通常发现在尤卡坦半岛。

Cenotes are freshwater sinkholes usually found on the Yucatán peninsula.

洞状陷穴是淡水灰岩坑通常发现在尤卡坦半岛。

Mainly engaged in: freshwater pearl wholesale, pearl necklace, pearl bracelet, pearl jewelry, pearl processing, and pearl jewelry; shellfish processing, shell necklace, shell bracelet, shell jewelry, conch shell carving crafts; Huian shadow carving, stone carving craft draw; agate, crystal, jade, horn comb; jewelery, fashion accessories, marine series shells, conches, handicrafts, tourism souvenirs, business gifts, natural crafts and so on.

主要经营：淡水珍珠批发，珍珠项链，珍珠手链，珍珠首饰，珍珠加工，珍珠饰品；贝壳加工，贝壳珠，贝壳项链，贝壳手链，贝壳饰品，贝雕工艺品；惠安影雕，石雕工艺品；玛瑙，水晶，玉石，珊瑚，绿松石，牛角梳；珠宝首饰，饰品批发，首饰配件，礼品包装；情趣内衣，时尚配饰，海洋系列贝壳，海螺工艺品，旅游纪念品，商务礼品，天然工艺品等。

It is feasible using three chamber electro dialysis to reduce water from PAM flooding mineralized degree technically. The viscidity of fresh water confecting 1 g/L polymer liquor is 11.9 mPa·s bigger than that is confected by fresh water. The handling voltage is 17 V.

结果表明：利用三室电渗析槽降低含聚污水矿化度在技术上是可行的；用降矿化度后的淡水配制1g/L的聚合物溶液的黏度比清水所配的高11.9mPa·s；采用微型电渗析方法降低油田含聚污水矿化度的适宜操作电压为17V。

"Ground water fish culture\",\"淡水养殖业\",\Includes fish, shrimp, crab and cowry culture.

&，\&包括在内陆水域进行鱼，虾，蟹，贝等水生动物的捕捞\

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。