水系

The defect in the drainage must be remedied.

这排统缺陷该法补救。

Winterize head, holding tank and fresh water system by draining or filling with non-toxic anti-freeze.

冬天组长,召开了排统及淡池或填无毒防冻剂.

The drainage of the city is not good, some of the pipes are broken.

这个城市排统不好, 有些排管都破裂了。

The native minerals originating from Tertiary basanite of Yaoshan formation,the placer is in water systems around Fangshan.

原矿产于第三纪尧山组玄武质碧玄岩中，砂矿则分布于方山周围中。

Introduce An Shun's Power plant a Term clotted water depurate equipment's drainage technic change.Change before or anon contrast, sopite design technic existed problem.

介绍安顺发电厂一期凝结精处理再排统技术改造前、后运行情况，解决原存在技术问题。

Public transient noncom-munity water systems provide water in places where people do not remain for long peri-ods, such as campgrounds and service stations.

公共暂时性非集体供统向不长期居住地方供，例如营区和服务站。

By using sulpho acid to dissociate samples, using spectrophotometric method to determine micro-chrome in drainage sedimentary is very easy and simple with low cost.

采用王分解样品,分光光度法测定沉积物样品中微量铬,方法简便,易操作,成本低。

Abstract The climate of southern area is muggy and wet.It is apt to multiply chironomid larva, which is the polluted insect in the system of supplying water of the city.

摘 要 南方地区气候适宜摇蚊幼虫孳，其繁殖迅速，环境耐受力较强，经常污染城市供统，且很难通过与氯接触被灭活。