催化作用

Results illustrated that Fe2O3 can catalyze pyrotechnical reagent with potassium perchlorate, and the addition is better with crystallization method.

利用绝热加速量热仪分别研究了氧化铁对含高氯酸钾烟火药剂、氧化铜对含硝酸钾烟火药剂的催化作用。

The results showed that: the zinc powder could be used to reductively dechlorinate pentachloropyridine to tetrachloropyridine with its yield about 20%. Under the catalytic effect of silver, the dechlorination efficiency of pentachloropyridine was greatly improved.

实验结果表明：反应温度为60 ℃时，单一锌粉能够对五氯吡啶进行还原脱氯生成四氯吡啶，但是收率不高，只有20%左右，在银的催化作用下，四氯吡啶收率得到了很大提高。

Salicylaldehyde and its derivatives often produce a formation of Schiff base metal chelate. They are special anti-cancer, anti-inflammatory, sterilization matters. At the same time because of therir structure similar to porphyrin ring, they can set of oxygen and simulated biological effect, So many scientist take interest in this field.

水杨醛及其衍生物与某些伯胺类化合物缩合形成的 Schiff 碱及其金属螯合物，具有特殊的抗癌、抗炎、杀菌、抑霉等活性，同时由于其结构类似于卟啉环，有较好的载氧和模拟生物酶的催化作用，已经引起了各国化学家的广泛兴趣。

It was demonstrated that the novel functional hyperbanched polyethylene could be prepared by the copolymerization of ethylene and polar comonomers protected by alkyl or aromatic silyl group.

研究表明，经烷基或芳基硅烷基团保护的极性单体与乙烯在MHNB催化作用下，通过共聚可以得到结构新颖的功能性超支化聚乙烯。

Do you ever seem to see specks in front of your eyes?

起催化作用的是大量微小的铂颗粒分布在有许多微孔的氧化铝材料中。

Methods The target compounds were prepared by using Pechmann reaction under catalysis by sulphamic acid and microwave irradiation. All the structures were confirmed by IR, 1H-NMR spectra.

在微波辐射和氨基磺酸的催化作用下经Pechmann反应得到相应产物，其结构经IR、1H-NMR波谱确证。

Organosilicon resin microparticles with phenyl and aminopropyl groups were prepared via the hydrolytic co-condensation of phenyltriethoxysilane,γ-aminopropyltriethoxysilane and diphenyldimethoxysilane under the catalysis of tetramethylammonium hydroxide.

在四甲基氢氧化铵水溶液的催化作用下，将苯基三乙氧基硅烷、γ-氨丙基三乙氧基硅烷和二苯基二甲氧基硅烷进行水解共缩聚制备氨丙基苯基有机硅树脂微粉。

This proves that concrete can produce thaumasite in a sulfate environment over 15 ℃, and the existence of Mg2+ can accelerate the formation of thaumasite.

证明水泥混凝土在＞15 ℃的硫酸盐侵蚀环境下亦可生成碳硫硅酸钙，而Mg2+的存在对碳硫硅酸钙的形成过程具有加速催化作用。

However, foreign transplants can only act as a catalyst to propel eventual evolvement of a wide-base local talent pool, or all will be lost when the talents re-emigrate or get absorbed into the local unchallenging environment.

然而，外来人才只能起催化作用，逐渐扩大本地人才的数量。外来人才一旦移民或被本地毫无挑战性的环境潜移默化的话，我们岂不是前功尽弃？

The catalytic activity depends on the size,distribution and amount of the loaded platinum microparticles,as well as on the concentration of formaldehyde and the temperature of electrocatalytic oxid...

铂微粒的大小、分布和载量，甲醛的浓度，电氧化温度等因素对电催化作用均有影响

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！