查询词典 oxidant

Styrene epoxidation was carried out using styrene as the row material, molecular oxygen as the oxidant, and modified vanadium phosphorus oxide as the catalyst.

以苯乙烯为原料，分子氧为氧化剂，改性的钒磷氧化物为催化剂合成环氧苯乙烷。

Using acetone as a photosensitizer,and N3· as an oxidant by pulse radiolysis method,the induced oxidation of cyclic-Phe-His in aqueous solution has been also reported in this paper,results similar to the photoionization of cyclic-Phe-His have been found.

而具有亲电子性的丙酮能在该环肽的苯丙氨酸残基的苯环上抽取电子，形成320nm和410nm的特征吸收峰，求出了自由基的有关动力学参数，并用脉冲辐解动态吸收光谱法印证了上述结果。

Viaviente的果实 ViaViente is an Anti-Oxidant rich blend of natural whole fruit purees that is formulated to support optimum health.

ViaViente是一种抗氧化剂，整个果实的自然是制定支持最佳健康果泥丰富的融合。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap a...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap and rea...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

Main effects: The well-refined Pomegranate essence and Ginkgo Biloba Extract totally protect skins from aging and oxidant. Working with VC mucopolysaeccharide and Extracting solution of grape pip could achieve the ultimate whiten effect to skin by whitening and nourishing different layers of skin lasting 24 hours.

主要功效：精取天然红石榴素精华与银杏精华，可全面保持肌肤鲜嫩，预防衰老和氧化；再配合VC粘多糖和葡萄籽提取液无与伦比的净白特点，24小时从不同层次净白肌肤，有效降低色素形成、持续分解、代谢黑色素；长期使用，肌肤回复完美自然、通透亮白。

Liquid-fuelled rocket engines can be classified as either open- or closed-cycle, according to how they derive the gases that power the turbine-driven pumps used to force the fuel and oxidant into the combustion chamber.

液体燃料火箭引擎分为开或闭循环，是跟据它们如何获得涡喷驱动泵的气体迫使燃料和氧气进入燃烧室。

Lycopene, which gives the tomato its deep red colour, is also an anti-oxidant that prevents certain cancers.

蕃茄红素使蕃茄呈深红色，同时也是一种预防某些癌症的抗氧化剂。

For anti-oxidant capability, it was found that the 140℃ superheated steam-heated sweet potato had the highest contents of total phenol and flavonoids, and the best scavenging ability of DPPH (1, 1-diphenyl-2-picrylhydrazyl) and FRAP (Ferric reducing ability of plasma).

在抗氧化力方面，发现不论总酚、类黄酮、清除DPPH (1， 1-diphenyl-2-picrylhydrazyl)或FRAP (Ferric reducing ability of plasma)值皆以140℃过热蒸汽加热30 min者最高。

When chlorine dioxide or sodium hypochlorite is used as oxidant,the CODer removal rate is higher under acidic condition.

在酸性条件下，用二氧化氯和次氯酸钠的CODCr去除率较高；而在中性条件下，采用双氧水的CODCr去除率较高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。