有机物

There are many merit for NBCD used in electron transfer reactions:(1) Photoactive compounds such as electron donor and acceptor could be dissolved in water, so it is possible to mimic the electron transfer in biological systems.

NBCD在电子转移反应中具有诸多优点：1。光活性有机物即电子给体、受体能够溶于水，使得模拟生物体系电子转移反应成为可能；2。

With the amount of loading silver increasing, the rate of photocatalytic degradation of organic matter increased too.

随着TiO〓表面载银量的增加，光催化氧化有机物的速度也相应增加。

It is found that the initial pH,ρ(H_2O_2) and ρFe~(3+ of the solution have significant effects in this photooxidative process. The removal percentage of COD_ is higher under solar irradiation than under UV irradiation. Under the selected conditions, using solar/H_2O_2/ferric oxalate complexes to treat the landfill leach has good efficiency. landfill leach ; ferric oxalate ; photocatalysis

已有的研究表明，Fe3+羧酸盐络合物具有光催化降解有机物的性能[1-3]；当草酸铁络合物体系中存在一定量的H2O2时，在太阳光或紫外光照射下，可发生类Fenton反应产生羟基自由基[4]，而草酸铁络合物可在一定程度上循环利用，使Fe3+和C2O2-4可以重新形成草酸铁络合物：2[Fe(C2O4)n](3-2n)hν2Fe2++(2n-1)C2O42-+2CO2(1)Fe2++H2O2

We sample from indoor air using silonite coated canisters, preconcentrate low level samples utilizing three stages focuser,analyze VOC in indoor air with GC/MS equipment.

采用硅烷化处理内壁的不锈钢采样罐采集室内空气样品，三级冷阱预浓缩，气相色谱-质谱仪联用分析室内空气中挥发性有机物。

Breath VOCs samples in Tedlar bags were preconcentrated with multi-bed sorbent sampling tubes and analyzed by thermal desorption-GC/MS.

呼气样本用采样袋收集，以复合床热脱附采样管来浓缩呼出气体中挥发性有机物，运用热脱附仪配合气相层析质谱仪来进行分析。

The results show that tricocyst to Tetrahymena pyriformis can be caused by the organic compounds from the pond water treated with Cl2 and there are better corelations to groups of treating concentrations.

因此养殖水体加氯消毒后是否同样会产生具有致突变作用的有机物，已引起国内外水产界的广泛关注。

Feasibility of tricocyst test with Tetrahymena pyriformis were evaluated by several chemicals (Cu2+, MMC, CP),and the effects on tricocyst by the organic compounds in the pond water with Cl2 were monitored .

然而近几年对加氯消毒饮用水的研究发现，氯能与水体中的微量有机物反应生成具有致突变作用的物质，如Symons[1]等人对美国80个主要城市氯消毒饮水的调查中发现普遍存在较高浓度的三卤甲烷。

The supplement of oxygen,which was used during remineralization, was due to the mix of different water mass in vertical direction, and the gradient variation of nutrients resulted from the remineralization of organic matter in hyposurface and intermediate water mass.

6根据垂向不同水团的表观耗氧量与营养要素比值推断：水团混合为有机物矿化提供氧的补充，同时次表层和中层水团中营养盐垂直梯度变化主要是由于有机质再矿化的结果。

The stability of chloˉrine dioxide disinfectant decreases with decreasing of pH.

杀菌能力随溶液pH值升高和有机物含量的增加而下降。

Guangzhou City Environmental Protection Bureau Chief Engineer Salicaceae told reporters that a high content of organic milk, the COD (chemical oxygen demand, detect water pollution indicators) amounted to 3,000 mg / l, while the untreated wastewater COD paper only 1000 mg / l; addition, as the issue of dumping milk containing melamine,"It's a question of the food chain as far as possible the post-diluted melamine content is low, almost not detected, but based on people's health is a highly responsible attitude In order to avoid the problem of milk contaminated fish the river."

广州市环保局总工程师杨柳告诉记者，牛奶中有机物含量很高，其COD(化学需氧量，检测水体污染程度的指标)达3000毫克/升，而未经处理的造纸废水的COD只有1000毫克/升；此外，由于倾倒的问题牛奶中含有三聚氰胺，&这有一个食物链的问题，尽量被稀释后的三聚氰胺含量很低，几乎检测不到，但本着对人民健康高度负责的态度，要避免问题牛奶污染河中的鱼类。&

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