硝化的

Aromatic hydrocarbons could be selectively nitrated with nitrogen dioxide in the presence of MIPs. MIPs were characterized by means of modern analyses. And such successes stem from combination of factors involved in this type of heterogeneous catalysis.

采用现代分析方法对MIPs进行表征，并将MIPs在催化芳烃硝化反应中表现的催化活性和区域选择性与其结构相联系。

The results show that the two free secondary amines of TAIW are nitrated firstly and then the four acetyl groups of TAIW are nitrolysed one after one under conditions of elevating the reaction temperature.

试验结果表明：TAIW笼底的两个游离仲胺基很容易首先发生硝化作用，在升温条件下，四个乙酰基再逐个发生硝解。

Not suitable for case hardening or nitrating.

不适合的情况硬化或硝化。

More expensive nitrating agents may be used.

还可应用较贵的硝化剂。

Experiments studied the effects of reacting conditions, solvents, catalysts etc on the reaction, and the best nitrating condition was established.

实验分析了反应条件、溶剂及催化剂等因素对反应的影响，找出了最佳硝化条件。

A heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a ''.

一种重的、黄色有毒油状爆炸性液体，由甘油硝化制成，用于制炸药，医学上用作血管舒张药。

The result of above three aspects indicates:(1) under these optimize conditions,the yield of nitrating reaction is 95.52%, the yield of phase transfer catalysis fluorination is 90.03%, the yield of chlorination is 87.5%,and the reaction total yield is 75.47%, which are higher than the yields reported, the purity of product is 98.5%.

上述研究结果表明：(1)在实验所得的工艺条件下，硝化收率为95.52%，相转移催化收率为90.3%，氯化收率为87.5%，反应总收率达到75.47%，产品纯度为98.5%，均高于文献所报导收率。

Nitroglycerin is obtained by nitrating glycerol.

硝化甘油是经过硝化丙三醇得来的。

A heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator.

一种重的、黄色有毒油状爆炸性液体，由甘油硝化制成，用于制炸药，医学上用作血管舒张药。

The characteristics, the working mechanisms on urease and nitrating inhibition as well as ammonia stability, technological keys, fertilizer product quality, and agricultural effect of compound fertilizer based on humic acid are discussed for the increase in fertilizer efficiency, improvement of agricultural product and raise of crop yield.

阐述腐植酸复混肥的性能，作用机理(脲酶抑制和硝化抑制机理及氨稳定机理)，生产技术要点，产品质量，农用效果(提高肥料利用率，改善农产品品质，提高作物产量)。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。