氨化合物

The oxidation of ammonium compounds into nitrates by soil bacteria.

通过硝化细菌的作用将氨的化合物氧化成硝酸盐的过程。

Protein, carbohydrate, ammonia, lipid, and iron are all found in apocrine secretion.

蛋白质、碳水化合物、氨、脂质、铁等都发现存在于顶浆分泌物中。

Recent advances in addition,reduction,and asymmetric reactions of imines were reviewed.

亚胺是一类羰基化合物与氨的缩合产物，作者综述了近年国内外亚胺在加成、还原和不对称反应等方面的研究进展

The novel synthesis of the 2-hydroxyl α-arylglycines was realized through the Lewis acids promoted Friedel-Crafts reaction of phenols and N-tosyl imino ester in mild reaction conditions.

其中在路易酸TiCl〓促进下，酚类化合物和亚胺酯发生的傅克反应，可较高产率、较高区域选择性的得到2-羟基α-芳香甘氨酸衍生物。

In the second section, we described CuI/L-proline-promoted cross-coupling reaction of aryl iodides with activated methylene c-ompounds.

本论文分为两部分，第一部分为手性胍离子液体的制备及性质表征；第二部分为CuI／L-脯氨酸催化的芳基碘苯和活泼亚甲基化合物交叉偶联反应的研究。

It is expected that further study on ZH-4B should offers clues for the design of selective receptor tyrosine kinases inhibitors in future.

另外，这一化合物的深入研究也将为特异的酪氨酸激酶抑制剂的设计提供良好的结构基础和作用模式。

The pH value of silages was all lower than 4.0 and the ratio of ammonia nitrogen to total nitrogen was all lower than 5.0, which improved the quality that all the silages in experiment were good.

经不同切碎方式的各组青贮饲料的有机酸含量均无显著差异（P〉0.05），pH值均在4.0以下，而且氨态氮与总氮的质量比也均在5.0以下，达到了优质青贮饲料的标准，虽然各青贮饲料的粗蛋白、粗灰分和可溶性碳水化合物含量有显著差异（P〈0.05），但均为优质的青贮饲料。

Results showed that there were no evident effects of different mechanical processes on the organic acid content(P＞0.05). The pH value of silages was all lower than 4.0 and the ratio of ammonia nitrogen to total nitrogen was all lower than 5.0, which improved the quality that all the silages in experiment were good. Though the effects of three different mechanical processes on the CP, CA and WSC contents of silages were evident, the silages were all excellent.

经不同切碎方式的各组青贮饲料的有机酸含量均无显著差异(P＞0.05)，pH值均在4.0以下，而且氨态氮与总氮的质量比也均在5.0以下，达到了优质青贮饲料的标准，虽然各青贮饲料的粗蛋白、粗灰分和可溶性碳水化合物含量有显著差异(P＜0.05)，但均为优质的青贮饲料。

With TEMPO(5 mol%) as the catalyst,N-methyl-N-phenyl-hydrazine(1.2 equiv.) as the amine source,the direct ortho-amination of 2-naphthols could be easily achieved.The reaction was carried out at room temperature under air atmosphere.

以5 mol%TEMPO为催化剂，1.2当量N-甲基-N-苯基肼作氨源，二氯甲烷为溶剂，空气中，室温下，实现了对2-萘酚邻位氨基化，可以高效的合成1-氨基-2-萘酚类化合物。

With TEMPO(5 mol%) as the catalyst,N-methyl-N-phenyl-hydrazine(1.2 equiv.) as the amine source,the direct ortho-amination of 2-naphthols could be easily achieved.

以5 mol%TEMPO为催化剂，1.2当量N-甲基-N-苯基肼作氨源，二氯甲烷为溶剂，空气中，室温下，实现了对2-萘酚邻位氨基化，可以高效的合成1-氨基-2-萘酚类化合物。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了