水源

However, the surplus residual chlorine can affect people's taste and smell, destroy the quality of water. Moreover, in the process of disinfection, chlorine can react with organic matter and produce a series of hydrochloric ether such as chloroform, bromoform, bromodichloromethane, chlorodibromomethane and so on, these matters can cause to some extent cancer to human body.

但是，水中过量的余氯会影响水的口感和气味，破坏水的品质；此外，在消毒过程中，氯与水中残余的有机物产生化学作用，生成一系列氯代烃如三氯甲烷、溴仿、溴二氯甲烷、氯二溴甲烷等，这些物质会对人体产生一定程度的致癌作用；对于以自然水源作为生活用水来源的城市必然要对水加氯消毒后才可使用。

Towards the end of May when the grass becomes dry and exhausted, millions of wildebeests, Thomson's gazelles and Burchell's zebras congregate, beginning their trek in a column several miles long to the permanent waters in the north of the park.

在五月末，当草地都干枯殆尽时，数百万只牛羚、汤姆森瞪羚和斑马就聚集在一起，开始踏上它们到公园北部寻找固定水源的旅途，这支迁徙的队伍要绵延几英里。

During this period the population of the nearby village of Burnside was expanding and required a new water supply.

在这一时期，附近伯恩赛德村的人口正在不断增长，他们需要新的水源。

On the one hand, for the area nearby Dawen river and the Jinghang Canal, peasant can use surface water to irrigate, which reduce the use of underground water and the grounder water was protected.

其一是有客水作为地表水水源的地区，部分农业用水采用地表水，减少了地下水的开采；其二是汶上县政府加强水资源管理，兴建水利，使地表水用量增加，地下水位出现回升趋势。

To repair the canal, there is no sufficient water is not acceptable.

要修运河，没有充足的水源是不行的。

Carry out a proof, this control system realized system of hot to fountainhead pump to arrive from circuit the highest efficiency control of canalage.

实践证实，此控制系统实现了对水源热泵系统从电路到水路的最高效率控制。

If they are too low, just drag them to water, food, a hut, or another castaway for some socializing.

如果他们太低的话，就拖拽他们到食物，水源，住宿小屋，或其他遇难者那里。

Metal pollution in drinking water sources is becoming a more and more serious problem that can not be neglected due to the mass discharge of industry sewage and electronic product castoff into the water in recent years.

近年来各种工业废水、电子废弃物的大量排放，已经使饮用水源水中的金属污染成为一个不可忽视的问题。

What percentage of its land area is taken up for water catchment?

有百分之多少的土地面积用作水源收集？

But in almost every real chiller plant, delta-T falls well short of design levels.

首先，对海水源热泵区域供热供冷系统的运行能耗进行了分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。