水源

New Strategies for the Control of the Parthenogenetic Chironomid.

水源中水蚤类浮游动物的孳生与生态控制研究。

As for the severity of the surface water pollution, water ecological balance was break and aquatic community had altered, tolerance species such as Chironomid larvae and Limnodrilus increased a lot in the water.

在我国，由于地表水污染严重，原有的水生生态平衡遭到破坏，摇蚊幼虫、水蚯蚓等耐污种类数量猛增，导致以这类水体作为供水水源时，出现水生动物污染城市供水系统的问题。

As a consequense of eutrophication, Chironomid larvae excessively propagates in water sources, such as reservoir and fresh lake, which induced the 1st instar larvae of Chironomid in source water to enter drinking water treatment system.

水体富营养化使得摇蚊幼虫在水库、湖泊类水源中大量孳生繁殖，直接导致其可以在给水处理系统中出现。

The chironomid larvaes enter the watersupply system through transmission pipeline.

水源中的红虫随输送管道进入给水系统，其在给水处理系统中繁殖并进入管网，对水质感官指标造成了重要影响。

Water chlorination is a widely used and efficient method to disinfect drinking water and reduce the occurrence of waterborne diseases.

水的氯化消毒是一种广泛使用的有效的方法消毒饮水和减少发生水源性疾病。

The result showed that the mutagenecity of water increased in all samples treated with chlorine, while mutagenic potential was negative in source water samples not treated with chorine.

水样采自某单位自备水源。试验结果表明，未氯化自来水有机提取物致突变反应阴性，加氯自来水样诱发沙门氏菌致突变率升高；在一定范围内，随氯浓度增加，不会显著增加水样的致突变性。

The only water source is a nearby underground cistern built by the British during the days of Empire.

这里唯一的水源是附近一处地下蓄水池，它还是在帝国时代由英国人修建的。

ZL03 2 354312.The innovations include: automatic self-closing and reliably sealed valve structure: the design of duplex valve clack with pilot valve to tackle the problem of reverse seal structured valve being difficult to be opened; an automatic drain control device to automatically drain the remaining water from the hydrant; protective plate provided between the hydrant body and the valve block to serve as a connection between the hydrant body and the valve block, which is the first one to be damaged when the ground hydrant is clashed, and prevent pulling-off of the whole above-ground part of the fire hydrant, so as to properly protect the main parts from any damage. The self-closing and reliably sealed valve now prevents drain of water, and only the damaged protective plate is needed to be replaced before immediate re-operation. Thus the repair work after clashing is very easy and simple.

其创新点为：具有能自动关闭并可靠密封的阀门结构：采用有先导阀复式结构阀瓣设计，解决反向密封结构阀门开启沉重费力的难题；设计自控排水装置，能自动排除栓体内余水；在栓体和阀体之间设计撞裂板，它既起到连接栓体和阀体的中介作用，又可在地上消火栓被撞击时率先破裂毁坏，并使露出地面的栓体不见整体脱落，有效保护各主体部件的完好无损，而此时阀门的自闭式结构可靠密封阀门阻止水源外泄，修复时只需更换损坏的撞裂板即可立即复位投入使用，使被撞后的修复工作变得十分轻松简便。

Maintaining the cleanliness of water sources to ensure people's health is the most important one.

保持了水源的清洁卫生，保证人民的健康这是最重要的一条。

Based in Tonghua County Qu Xing Yanagawa Town Economic Development Zone, communications facilities convenient, clean air, tree-lined canopy, water rich in mountains, beautiful scenery, an natural pollution-free zone.

基地设在通化县兴林镇曲柳川经济开发区，通讯设施齐全方便，空气清新，林荫郁闭，水源丰富，群山环抱，景色秀丽，属纯天然无污染地带。

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。