The printing and dyeing sewage is of great quantity, high colority and poor biochemical purification ability.
印染污水具有水量大、色度高、可生化性差的特点。
The purification ability of Elodea Canadensis Michx is higher than those of Potamogeton Crispus Linn and Ceratophyllum Demersum Linn.
伊乐藻对水体的净化能力高于菹草和金鱼藻。
The absorption and purification ability of some green tree species to heavy metal Pb and Cd in the atmosphere is measured and compared.
研究测定了部分城市园林绿化树种对重金属中大气铅、镉污染物的吸滞能力。
The absorption and purification ability of some tree species to heavy metal pollutants, Pb and Cd in the atmosphere are measured and studied.
研究测定了部分城市绿化树种对重金属大气铅、镉污染物的吸滞能力。
Metabolism coupling of phytoplankton and microorganism is the basis of indicating culture water's self purification ability and keeping it stable.
养殖水体浮游植物和微生物的代谢偶联，是反映水体自净能力，保持水体稳定的基础。
The study on the purification ability of reed wetland soil and influence factors of the phenol by dynamic method was conducted.
用动态土柱法研究芦苇湿地土壤对苯酚的净化效果及其影响因素。
Water environment impact is related to the style and strength of the activities and with the water areas self-purification ability.
旅游活动对水环境的影响除了与活动方式、活动强度有关外，与水域面积、自净能力亦有显著的关系。
The absorption and purification ability of some greening tree species to heavy metal pollutants, Pb and Cd in the atmosphere are measured and studied.
研究测定了部分城市绿化树种对重金属大气铅、镉污染物的吸滞能力。
All the factors, such as height, COD loading, hydraulic loading and the frequency of leachate dosing, to a certain extent, affected the purification ability.
煤灰和土壤高度、有机负荷、水力负荷及配水次数等因素均对净化能力有一定的影响。
To improve the self-purification ability and pollution situation of river water, control the pollution load and ensure the river basic flow are two important ways.
在控制污染负荷排放的同时，也要保证河流基本流量，提高水体自净能力，改善渭河水体的污染现状。
The soil structure, the hydraulic loading, COD loading, the frequency of leachate dosing and the concentration of influent, to some extent, all affect the purification ability.
土壤结构、水力负荷、COD负荷、配水次数及配水浓度等对净化能力均有一定的影响。
The growth and the purification ability of Hemerocallis fulva Linn. in heavy and light eutrophic water were studied by means of soilless cultivation technique on artificial substratum.
利用小型人工基质无土栽培萱草，研究其在轻度和重度富营养水中的生长及净化能力。
Low ash coal with an ash content lower than 2% can be separated from some suitable coal with its purification ability and by a high efficient cyclonic microfoam columned pneumatic floatation machine.
对于一些适宜的煤种，利用净化能力强、分选效率高的旋流微泡浮选柱可以分选出灰分小于2%的低灰煤。
Low ash coal with an ash content lower than 2% can be separated from some suitable coal with its purification ability and by a high efficient cyclonic microfoam columned pneumatic floatation machine.
对于一些适宜的煤种，利用净化能力强、分选效率高的旋流微泡浮选柱可以分选出灰分小于2%的低灰煤。
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