查询词典 heavy water

This paper was focus on Dianshan River which is one of the most important water sources of Shanghai. We study the distribution, speciation and transformation rule of Cu, Cd, Cr, Hg, Pb and As in sedimentary record. In addition, the history of development of industries and agriculture were also taken into account to study the heavy metal pollution history in the study area.

本文以上海的重要水源地——淀山湖为研究对象，通过对研究区沉积物中重金属元素Cu、Cd、Cr、Hg、Pb、As的时空分布规律以及它们在沉积物中随时间或沉积深度的形态分布及迁移转化规律的研究，综合考虑区域工农业发展现状和历史对沉积物中重金属元素含量及分布的影响，对区域重金属污染历史及效应进行分析论证。

In this paper, the treatment of heavy metal waste water by adsorption was summarized.

综述了吸附法处理重金属废水的研究进展。

Currently, the impact of excessive phosphorus on water bodies focuses on eutrophication and algae overrun, which have been the hotspots and intractable problems for environment protection in China, essentially an outcome of the concentration of the compounds of nitrogen and phosphorus, and the heavy reproduction of aerobe.

当前过量磷对水体产生的影响集中地表现为富营养化和藻类繁生现象，其实质是耗氧有机物及氮、磷化合物的生态环境效应。它们已成为我国环境保护的热点甚至是十分棘手的控制治理问题。

In the porosity reservoir with anhydrite, the formation water is rich in sulfate and poor in heavy metal ion.

在与硬石膏的多孔性水库，形成水在重金属的离子的硫酸盐和贫寒上是富有的。

Thischaracteristic of Atriplex canescens is consistent with that of many local species. TheLCP of Atriplex canescens in different treatments (light, medium, no and heavy watersoil stress) are 314.8μmolm~(-2)s~(-1)、272.5μmolm~(-2)s~(-1)、176.7μmolm~(-2)s~(-1)、143.1μmolm~(-2)s~(-1), respectively, which indicates that the LCP of Atriplex canescens is reducingwith the escalation of soil water stress. This tendency is favorable for Atriplexcanescens under drought stress to maintain certain photosynthesis even in weaksunlight so as to ensure the survival of itself, and keep balance between maintainingwater content inside and its photosynthesis.

四翅滨藜在不同土壤水分胁迫下的光补偿点：轻度土壤水分胁迫、中度土壤水分胁迫、无土壤水分胁迫和重度土壤水分胁迫下的光补偿点分别为，314.8μmolm~(-2)s~(-1)、272.5μmolm~(-2)s~(-1)、176.7μmolm~(-2)s~(-1)、143.1μmolm~(-2)s~(-1)，说明四翅滨藜的LCP随着土壤水分胁迫的加重而呈现降低的趋势，这种变化有利于处在干旱胁迫中的四翅滨藜在光强较弱的条件下仍然能维持一定的光合作用，以满足植物自身生命活动所需，同时也可以使植物在保持体内水分和进行光合作用之间寻找平衡。

The application of humic acid substances could decrease the pollution of agrochemical matters, purify the polluted atmosphere of raising poultry and livestock, treat polluted water and pollution of heavy metal, and adsorb petroleum and its products in the water.

腐植酸可以有效地减少农药和化学肥料对生态环境的污染，净化养殖业的空气污染，能够治理工业及城市生活的污水、重金属和石油污染。

Liquid filter core; mine heavy vehicle filters; engineering machinery series oil, diesel filter and filter, oil filter, diesel filter, hydraulic filter, oil-water separator filter, oil and gas separation filter, filters, filter core, steering filter, pilot filter, precision filter, water filter, wire-cut filter, oil filter, thread wound filter, melt-blown polypropylene filter, activated carbon filter, copper mesh filter, excavator Series diesel oil filter.

液体过滤器芯；矿山重型汽车过滤器；工程机械系列机油、柴油滤芯及滤清器、机油滤芯、柴油滤芯、液压滤芯、油水分离滤芯、油气分离滤芯、过滤器滤芯、转向滤芯、先导滤芯、精密滤芯、水滤芯、线切割滤芯、油槽滤芯、线缠绕滤芯、聚丙烯熔喷滤芯、活性炭滤芯、铜网滤片、挖掘机系列机油柴油滤芯。

The regenerating method invention thereof comprises the following steps: firstly, the treating tea after absorbing the heavy metal ions is washed by water to the neutral after HCL solution is used for eluting; and secondly, the NaOH solution of a certain proportion is used for flowing through the column, and then water is used for washing to the neutral.

其再生方法包括：(1)将已吸附了重金属离子的处理茶，用HCL溶液洗脱后用水洗至中性；(2)用NaOH溶液的比例过柱，再用水洗至中性。

Since the human body is七成water, as water running stagnation is unfavorable, the body would be in a "wet" state, symptoms are heavy limbs, edema, spleen and stomach does not, such as stool thin.

由於人体有七成是水份，若水的运行停滞不顺，身体便会处於「湿」的状态，症状是四肢沉重、水肿、脾胃不和、大便稀薄等。

Orimulsion,a bitumen-in-water emulsion,composed of 70% heavy crude oil reserved in Venezula and about 30% water,is called " the forth " fossil fuel.

奥里油是产于委内瑞拉的一种乳化原油，这种全新的油品被称为&第四种&化石燃料。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐