Major by-products included nitrobenzene, p-benzoquinone, p-aminophenol, maleic acid , oxalic acid and formic acid etc, as identified in HPLC and IC. Possible degradation pathways of aniline by O3 were suggested.

通过HPLC和IC检测,苯胺降解的中间产物主要为硝基苯、对苯醌、对氨基苯酚、马来酸、草酸、甲酸等,提出了US/O3协同降解苯胺的可能途径。

属类：化学及生命科学-化学-臭氧氧化

In addition, lower molecular organic acids produced in the course of degradation are determined in IC. Refer to Fig. 5 for the variation of concentration of different by-products to the reaction time.

同时通过离子色谱检测降解过程中产生的低分子有机酸。不同中间产物的浓度随反应时间变化情况见图5。

属类：化学及生命科学-化学-臭氧氧化

Fig. 2 Comparing of effects of various degradation procedures.

图2不同方法降解效果的比较

属类：化学及生命科学-化学-臭氧氧化

Fig. 2 The concentration variation of aniline and TOC in degradation system.

图2降解体系中苯胺和TOC的浓度变化

属类：化学及生命科学-化学-臭氧氧化

Fig. 3 Influence of pH on the degradation of aniline

图3pH对苯胺降解的影响

属类：化学及生命科学-化学-臭氧氧化

Fig. 3 Influences of US energy density on the effect of US/O3 degradation

图3US声能密度对US/O3降解效果的影响

属类：化学及生命科学-化学-臭氧氧化

paints and varnishes-evaluation of degradation of paint coatings-designation of intensity,quantity and size of common types of defect-part 3:designation of degree of rusting

涂料和清漆-色漆涂层剥蚀的评定-一般性缺陷程度、数量和大小的规定-第3部分:生锈程度的规定

属类：行业标准名称-试验方法-

paints and varnishes-evaluation of degradation of paint coatings-designation of intensity,quantity and size of common types of defect-part 4:designation of degree of cracking

涂料和清漆-色漆涂层剥蚀的评定-一般性缺陷程度、数量和大小的规定-第4部分:裂纹程度的表示方法

属类：行业标准名称-试验方法-

Technical Cooperation Trust Fund on Land Degradation Assessment and Mapping

土地退化评估和绘图技术合作信托基金

属类：科技术语--

To improve the degradation velocity while lowering the cost, the joint application of supersound with other oxidation procedure had become hot investigation.

为了提高其降解速度同时降低费用,超声与其它氧化法的组合是目前的研究热点[20],

属类：化学及生命科学-化学-臭氧氧化

The only serious stress is laid upon the degradation of tahiti

唯一严肃的地方是把塔希提岛奚落了一番。

属类：综合句库--

Degradation is accelerated following leaf detachment

叶子脱落促进降解。

属类：综合句库--

the degradation mechanism and influencing factor of aniline are explored from the concentration variation of aromatic and low molecular organic acid intermediates in the course of ozonation reaction of simulated wastewater containing aniline

用臭氧氧化法对苯胺模拟废水进行处理,通过各芳香族和低分子有机酸中间产物在反应过程中的浓度变化,来探明苯胺降解机理和影响因素

属类：化学及生命科学-化学-臭氧氧化

It can be seen by comparing Fig. 2(a)and (b)that TOC had lower degradation velocity and lower removal rate than aniline when the solution containing aniline was treated with different procedures.

由图2(a)和(b)比较可知,当采用不同的方法处理苯胺水溶液,TOC比苯胺的降解速度慢,同样去除率也要低。

属类：化学及生命科学-化学-臭氧氧化

As shown in Fig. 4, the degradation time of aniline will become shorter and the removal rate will become higher as the flowrate of ozone increases.

由图4可以看出,随着O3流量的增大,臭氧降解苯胺所需的时间缩短,去除效率增加。

属类：化学及生命科学-化学-臭氧氧化

The point of degradation , due to attenuation or distortion, at which a signal becomes unusable

由于衰减或失真使得信号变得不能使用的那个退化点。

属类：综合句库--

Another pathway of organophosphate degradation involves reduction

有机磷酸盐降解的其它途径还包括还原作用。

属类：综合句库--

Sometimes it may be desirable to stimulate degradation processes.

有时我们希望刺激降解过程。

属类：工程技术-食品工程-

There are several examples of a one-carbon degradation leading to aldehydes

有一些减少一个碳原子制备醛的实例。

属类：综合句库--

The role of dopants and contaminants in degradation cannot be ignored

杂质和污染对退化的作用不能忽视。

属类：综合句库--

In this chapter we briefly review the structure, biosynthesis, degradation and regulation of collagen in tissues

在本章中我们简要地叙述组织内胶原的结构,生物合成的、降解和调节。

属类：综合句库--

Evaporation at this reduced temperature decreases thermal degradation and results in optimal product quality.

在低温下蒸发可减少热降解,并产生适宜的产品质量。

属类：工程技术-食品工程-

Degradation rate of TOC in aniline-containing solution at sound intensity of 0.3W/ml was slightly lower than that at sound intensity of 0.2W/ml.

在声强0.3W/mL条件下,苯胺溶液的TOC降解率比声强为0.2W/mL时略有下降。

属类：化学及生命科学-化学-臭氧氧化

The pathway of DDT degradation in soil has not been fully ascertained

在土壤中滴滴涕降解的途径还没有充分调查。

属类：综合句库--

In many products, freeze concentration produces a superior product, since there is no thermal degradation and no loss of volatile flavors and aromas.

在许多产品中,冷冻浓缩生产出质优的产品,原因是产品没有热降解,没有挥发性风味物质和芳香化合物的损失。

属类：工程技术-食品工程-

Evaporation at low temperatures, under vacuum, reduces thermal degradation of food properties (textural and nutritional), and aroma recovery schemes allow collection of essential flavors and aroma compounds.

在一定真空度下低温蒸发可减少食品性质(组织结构和营养)的热降解,风味回收项目使必要的风味物质和芳香化合物得到收集。

属类：工程技术-食品工程-

Abstract The influence factors and mechanism of US/O3 synergetic degradation of aniline in wastewater were investigated.

摘要本文研究了超声(US)/臭氧(O3)协同氧化法降解苯胺模拟废水的影响参数和降解机理。

属类：化学及生命科学-化学-臭氧氧化

but which, mere copies as they were, seemed to feel their degradation in being brought into juxtaposition with the gaudy colors that covered the ceiling

这几幅画和那俗不可耐的镀金的天花板极不相称,它们虽然只是临摹的复制品,那位银行家却是当作真迹买来的。

属类：综合句库--

This type of degradation is also called depolymerization

这类降解也可称作解聚合。

属类：综合句库--

That’s because the amount of ?OH will increase significantly as the flow rate of ozone increases , contributing to the higher removal rate and shorter degradation time.

这是因为随着O3流量增大,产生的?OH的数量也随之增多,因此对苯胺的去除效率也就增加,降解时间也缩短。

属类：化学及生命科学-化学-臭氧氧化