查询词典 oxidation

The dissolvent can be exposed to the air, for it has been added some additives for oxidation resistance.

这种溶剂可以暴露在空气中，因为其中已经加入了抗氧化的添加剂。

The SEM results indicated that a typical donga structure layer appeared on the surface of stainless steel wire mesh support after anodic oxidation procedure.

SEM结果表明，经阳极氧化工艺处理过的不锈钢金属丝网载体表面形成了一层沟壑形态的复合氧化膜。

In this paper, firstly, a detail analysis、 study and discussion of the existing disposing-chlorine method were made, on this condition, a new method based on the way of oxidation and deoxidization was discussed, phosphoramidic acid chelate resin and DOOl cation exchange resin were chosen as framework materials, two kinds of new disposing-chlorine materials could be obtained by loading Fe~(2+) on the skeleton of the materials, the surplus residual chlorine was disposed by taking advantage of chlorine oxidizing Fe~(2+).

本文在对已有的余氯去除方法进行分析、研究、探讨的基础上，提出一种基于氧化还原方式的吸附除氯方法，实验以氨基磷酸螯合树脂和D001强酸性阳离子交换树脂为骨架材料，并对这两种材料载Fe~(2+)改性得到两种新型除氯剂，通过固载的Fe~(2+)与水中余氯(Cl_2、ClO~-、HClO)的氧化还原作用将水中的余氯除去。

The effect of the Cu/H 2O 2 on oxidation of DOPA has been studied by UV Vis spectroscopy at different pH.

本文采用紫外-可见光谱法研究了在不同 p H条件下铜/H2 O2 对多巴氧化作用的影响。

It catalyzes the oxidation of dopa rapidly to dopaquinone, which in turn polymerize non-enzymetically into insoluble melanin.

它是一种含铜的酶，能够催化单酚羟化成二酚，把二酚氧化成醌；醌在非酶促条件下形成最终的反应产物黑色素。

Melanin from cheese and other food contained tyrosine, in the body under the action of enzymes, tyrosine into DOPA and then oxidation, the final polymerization into melanin.

黑色素来源于奶酪等食物内所含的酪氨酸，在体内酶的作用下，酪氨酸转化成二羟苯丙氨酸，然后氧化，最后聚合成黑色素。

Vitamin C can interrupt the process of melanin production could have been generated to prevent further oxidation of DOPA ammonia was reduced to dopa, and can reduce serum levels of copper oxide, affecting the activity of tyrosine plum, thereby interfering with the biosynthesis of melanin, if the want to make the skin and fair complexion, we might eat more foods rich in vitamin C such as tomatoes, oranges, lemons, hawthorn, citrus and so on.

维生素C能中断黑色素生成的过程本来是可以防止的多巴氨进一步氧化减少到多巴，并能降低血清铜氧化，影响酪氨酸梅的活性，从而与黑色素的生物合成，如果干扰是想使皮肤白皙，我们可能会吃更多的食物含有丰富的维生素C，如西红柿，橙子，柠檬，山楂，柑桔等。

Kiwi was able to play whitening, freckle role is one of the reasons for vitamin C can effectively inhibit skin dopa quinone oxidation, so that the skin pigment dark oxidized into the reduced light pigments, interference with the formation of melanin the prevention of pigmentation in order to maintain fair-skinned.

猕猴桃之所以能够起到美白、祛斑的作用，原因就是其中的维生素C能有效抑制皮肤内多巴醌的氧化作用，使皮肤中深色氧化型色素转化为还原型浅色素，干扰黑色素的形成，预防色素沉淀，从而保持皮肤白皙。

The effects of reaction temperature ,reaction time and dosage of catalyst on the oxidation reaction were examined.

考察了反应温度、反应时间和催化剂用量对氧化反应的影响，找到适宜的氧化反应条件。

It can be presumed that acting point of salicylic acid is possible before oxidation of taxa-diene exocycle double bond.

因而推测柠檬酸钠的作用位点很可能在紫杉二烯环外双键氧化之前。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。