查询词典 water pollution

The natural organic macromolecule used in water treatment is nonpoisonous, easily biodegradable, no secondary pollution, wide Raw material sources, and low price advantage.

用于水处理的天然高分子絮凝剂具有无毒、易于生物降解、无二次污染、原料来源广、价格低等优点，近年来得到了重视与应用。

This high-quality water-based coating liquid is nontoxic and pollution-free, meeting the requirements of environmental protection and resource recovery.

本品是一种无毒无公害符合环保及资源回收要求的高品质水性表面处理液。

The output of agricultural nutritive substance is the one of main cause for water environment pollution.

农业生产营养物质的输出是造成水环境污染的重要原因之一。

Practical calculation method of water environmental capacity and pollution control projects are proposed based on weighting of sewage outfall.

其方法的正确性由恒权水环境容量计算得到了验证。

Based on the biology model, leek is put in the normal paint or water-based environment. Since the ratio of microkernel is directly proportional to damage, the pollution can be assessed through the permillage of microkernel.

通过实验建立起生物学模型，将处于减数分裂时期的韭菜花放入涂有油漆和水性漆的环境中，其花粉细胞常发生突变，而在正常环境中的韭菜花的花粉细胞突变较少。

Pollution of the water supply reached a level pernicious to the health of the population.

一些经济学家对失业率达到前所未有的程度表示忧虑。

On the basis of laboratory and in situ tests,we analyse the depth and perviousness of vadose zone as well as aquifer and aquifuge and, furthermore,point out Penglaizhen formation with poor permeability can effectively prevent pollution of ground water from the leachate of refuse.

结合室内和野外现场试验，详细分析填埋场区的包气带、含水层、相对隔水层的厚度、透水性等水文地质条件，指出被透水性差的蓬莱镇组中段地层所围限的三面环山、中间沟谷的地质环境，能够有效地阻滞垃圾渗滤液对地下水的污染。

Objective: To investigate pollution levels and characteristics of Phthalate esters in surface water in Nantong city.

目的：了解南通市地表水中邻苯二甲酸酯类污染水平和特征。

Effects of single and combined pollution by Pb~(2+),Cr~(6+),and Cd~(2+)on activities of catelase and peroxidase of Syngonium podophyllum leaves were studied with the method of indoor water culture.

采用室内溶液培养法研究了Pb2+、Cr6+、Cd2+单一及其复合污染对白蝴蝶叶片过氧化氢酶和过氧化物酶活性的影响。

It observed elements of the marine environment are:(1) physical parameters, such as water temperature, salinity, currents, tide, wave and so on;(2) weather station network-related physics parameters, such as sea surface wind, temperature and dew point, pressure, sea ice, wind and waves and swell;(3) other parameters, such as solar radiation and rainfall;(4) non-physical parameters, such as pollution physical, chemical and biological parameters such as volume.

它所观测的海洋环境要素主要有：（1）物理学参量，如海水温度、盐度、海流、潮位、波浪等；（2）与天气站网有关的物理学参量，如海面风、气温及露点、气压、海冰、风浪和涌浪；（3）其他参量，如太阳辐射和降雨量；（4）非物理参量，如污染物质、化学和生物量参量等。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。