污气

Experiments are conducted on the effect of different types and different molecular structures of polymers on HPAM removal existed in solution or sewage. It is found out that only cationic polymer has a better removal effect of HPAM among the non-ion, amphoteric ion and hydrophobical cation polymers, especially the DMDAAC cationic polymer has an optimal result. The removal capacity to HPAM can be further improved by using appropriate molecular weight and cationic capacity and gas floatation technique.

试验研究了不同类别及分子结构的聚合物对溶液或污水中HPAM的去除效果，发现非离子、两性离子、疏水改性阳离子聚合物对HPAM无去除作用，只有阳离子聚合物去除效果较好，其中尤以DMDAAC系列阳离子聚合物效果最优，而适当的分子量和阳离子化度以及气浮技术均可以进一步提高其对HPAM的去除率。

Series of combained technologies including cutting off wastewater,dredging,aeration and bio-remediation were applied to control the pollution of black-colored and odorous river in Putuo District ,Shanghai.

摘 要：利用截污、疏浚、调水、曝气增氧和生物修复等措施，对上海市区内的工业黑臭河道进行治理。

The main products: water treatment equipment Series: cast iron gates and copper inlay hoist, stainless steel gates, steel gates, steel shoot glass doors, glass doors influx of steel; series grille decontamination; series centres around transmission scraping mud-and-Xini , Concentrated; sludge dewatering belt with dehydration; various mixers, and drug equipment, pipeline mixer; iron and steel, petrochemical, mining water supply, water circulation system and special equipment; various filters, biological materials aeration Vehicles.

主要产品：水处理设备系列：铸铁镶铜闸门及启闭机，不锈钢闸门，钢制闸门，玻璃钢拍门，玻璃钢潮门；系列格栅除污机；系列中心周边传动刮泥机，吸泥机，浓缩机；污泥脱水用带式脱水机；各类搅拌机，加药设备，管道混合器；钢铁、石化、矿山企业给水、循环水系统专用设备；各类过滤器、生物填料、曝气器等。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。