供水系统

The Chironomus Larva Pollution has become a problem in municipal water system.

城市供水系统中摇蚊幼虫污染已经成为不可忽视的问题。

The standard method of using bti was established.5. Chironomus was given a classification by molecular classification.

在供水系统中首次引入生物制剂来防治红虫，建立了利用bti粉剂防治红虫的标准化方法。

The biological and ecological characteristics of Chironomus kiiensis Tokunaga, an important insect pest in municipal water supply system were studied.

本文首次在城市供水系统研究了花翅摇蚊的室内饲养，并且从物理防治、化学防治、生物防治不同角度研究了花翅摇蚊的防治措施。

Investigators determine that the town's public utilities had failed to properly chlorinate the town's wells, allowing the deadly bacteria to flourish in the water supply.

调查人员认为该镇的公共事业单位未能妥当在镇上的水井里加氯消毒，导致致命病菌于供水系统中滋生。

They are soft starter , frequency converter and brushless -ringless converter.

为此，介绍了软启动器、变频器、无刷无环启动器的特点和技术演变过程，以及在城市供水系统中的应用。

It is contamination of water with city sewage and factory wastes; the runoff of fertiliser and manure from farms and feed lots; sudsy streams; sediment washed from the land as a result of storms, farming, construction and mining; radioactive discharge from nuclear power plants; heated water from power and industrial plants; plastic globules floating in the world's oceans; and female sex hormones entering water supplies through the urine of women taking birth control pills.

它是水体被下列污染物所污染：城市污水和工业废水；从农场和饲养场流失的化肥和粪肥；充满泡沫的溪流；由于暴雨、耕作、建筑和采矿而被冲刷的土壤沉积物；来自核电站的放射性排泄物；电厂和工厂的热水；漂流在全球海洋中的塑料小球；从服用避孕药的妇女的尿液进入供水系统的女性荷尔蒙。

It is contamination of water with city sewage and factory wastes; the runoff of fertiliser and manure from farms and feed lots; sudsy streams; sediment washed from the land as a result of storms, farming, construction and mining; radioactive discharge from nuclear power plants; heated water from power and industrial plants; plastic globules floating in the world's oceans; and f

它是水体被下列污染物所污染：城市污水和工业废水；从农场和饲养场流失的化肥和粪肥；充满泡沫的溪流；由于暴雨、耕作、建筑和采矿而被冲刷的土壤沉积物；来自核电站的放射性排泄物；电厂和工厂的热水；漂流在全球海洋中的塑料小球；从服用避孕药的妇女的尿液进入供水系统的女性荷尔蒙。

She had inspected dozens of hospitals and barracks and now exposed them as damp,filthy and unventilated,with dirty drains and infected water supplies.

她调查了几十家医院和兵营从而发现这些地方潮湿、污秽而且通风不畅，排水管污浊并且供水系统受到污染。

She had inspected dozens of hospitals and barracks and now exposed them as damp , filthy and unventilated , with dirty drains and unventilated , with dirty drains and infected water supplies .

她调查了几十家医院和兵营从而发现这些地方潮湿，秽而且通风不畅，排水管污浊并且供水系统受到污染。

She had inspected dozens of hospitals and barracks and now exposed them as damp, filthy and unventilated, with dirty drains and unventilated, with dirty drains and infected water supplies.

她调查了几十家医院和兵营从而发现这些地方潮湿、污秽而且通风不畅，排水管污浊并且供水系统受到污染。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。