查询词典 water system

The best filtration system to use in a Koi pond to maintain excellent water quality is a biological system.

最好的过滤系统使用一个池塘，保持优良的水质是一个生物系统。

The best filtration system to use in a Koi pond to maintain excellent water quality is a biological system.

最好的过滤系统，以集中使用于锦鲤池，以保持良好的水质是一个生物系统。

By imitating different concentration of Cd2+ Cu2+ Cr3+ Cr6+and Zn2+polluted water environment,we mainly studied their toxic effects on aquatic piants by means of measurement of physiologicai indexes and electron microscopy observation as well as the relieving to Cu2+ injury of antioxidase enzyme system in Lemna minor L. and Vallisneria asiatica Miki in this paper by throwing Ce.the experimental results showed that Cd2+ Cu2+ Cr3+ Cr6+ and Zn2+ might injure photosynthetic systems, protective enzyme system, substance metabolism systems and cell ultrastructure of the plant.

本文通过模拟不同浓度梯度的重金属Cd~(2+)、Cu~(2+)、Cr~(3+)、Cr~(6+)和Zn~(2+)污染环境，利用生理生化测定、扫描电镜、透射电镜、气相色谱及激光共聚焦等实验手段，研究了四种金属离子对不同生态型的水生植物的毒害影响，初步探索了Ce对浮萍Cu害的缓解效应和La、Zn及其交互作用对浮萍活性氧清除系统影响。

We examined the reduction of COBE to optically pure-CHBE by E. coli transformants in a water monophase system reaction and discuss the possible use of this type of reaction system in industrial applications.

我们研究ㄋ在水单相体系中由COBE还原生成纯光学旳CHBE，还讨论ㄋ这种反应体系在工业应用中可能旳用途。

These exceptions include cases where the nonmunicipal water or wastewater system does not meet health and safety standards—such as failing septic systems—or cases where service extension would improve system-wide operations or efficiency.

这些例外包括非城市用水和废水没有到达健康和安全标准-比如没有化粪池的系统-或者延伸服务可以提升系统范围的运行和效率的情况。

Three kinds of hydrophytes, Veliveria zizanioides Nash, Eichhornia crassipes, and Oenanthe javanica DC. were used to investigate enrichment ability of nitrogen and phosphor at the different TN levels with TP constant. It revealed the absorption ability of aquatic plants and purification ability of aquatic macrophytes-rhizosphere microorganisms system respectively in aquatic macrophytes-microorganism system for water purification.

研究了不同TN浓度下香根草、水葫芦、水芹等水生植物－微生物系统富集N、P的能力，揭示了水生植物－微生物系统中水生植物的吸收作用和根际微生物系统对净化水质的作用，对水生植物根际微生物系统相应微生物的数量做了定量的统计。

In this paper organoleptic index, physico-chemical index for water body and sediment,composition of river ecological system, function of river ecological system to assess river pollution condition were introduced

论文全面介绍了感观指标、水质和底泥的理化指标、河流生态系统的结构和河流生态系统的功能等评价河流污染状况及治理效果的指标体系。

After introduction of reaction mechanism of LHE water stabilizer containing polyhydroxy carboxylate in CW system and applications in other chemical plants,the author analyzes the feasibility introducing this kind of stabilizer into CW system in nitric acid plant of Sichuan Chemical Co.

介绍LHE聚合羟基羧酸盐水质稳定剂的作用机理以及在其他化工厂循环水系统中的应用实例，设想将LHE聚合羟基羧酸盐水质稳定剂用于我公司硝酸厂循环水系统，将表冷液治理后低浓度氨氮淡水作为循环水系统的补充水，达到氨氮零排放。

It indicates that: The eco-physical system composed by Potamogeton crispus system can reduce TN,TP load of river water taking sediment .

利用冬春季沉水植物菹草构建的阶梯式水生植物系统研究了其对水体悬浮泥沙及氮、磷污染物的净化效果。

It indicates that: The eco-physical system composed by Potamogeton crispus system can reduce T N ,TP load of river water taking sediment.

利用冬春季沉水植物菹草构建的阶梯式水生植物系统研究了其对水体悬浮泥沙及氮、磷污染物的净化效果。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。