氨氮

The nitrogen balance on days 8 was remarkably improved in experimental and normal diet groups compared with control group. There were highter serum glutamine and BCAA concentration, hydroxyproline content and tensile strength of wound, and better lymphocyte blastogenesis in experimental group compared with control and normal diet groups. Experimental and normal diet groups had higher mucosal DNA, RNA and protein content than control group.

实验组动物的血浆谷氨酰胺、BCAA含量，外周血淋巴细胞转化率，伤口皮肤抗张力强度和羟脯氨酸含量都显著高于对照组和正常饲料组(P＜0.05)；实验组和正常饲料组动物第8天氮平衡，小肠粘膜核酸和蛋白质明显高于对照组(P＜0.05)。

The absorption of root system was the main sources of nitrogen in the plant.The effects of matrix ventilation on the abaorption,transportion and metabolism of nitrogen in the root system of cucmber were discussed deeply.The results showed that contents of ammonium,nitrate,free amino acids and soluble protein in cucumber roots were higher in G1 treatment.Contents of ammonium,nitrate and free amino acids in cucumber roots were the trend of the dropping after the first rising in F1 treatment,but contents of soluble protein was lower11.03%than that of the control.

根系吸收是植物体内氮素的主要来源，本研究深入探讨了基质通气状况对黄瓜根系氮素吸收、运输和氮代谢的影响，结果表明G1通气处理根系的铵盐、硝酸盐、游离氨基酸和可溶性蛋白含量均较高；非通气处理(F1处理)根系内铵盐、硝酸盐和游离氨基酸含量呈先升高后降低的趋势，而可溶性蛋白含量始终较低，比对照降低11.03%。G1处理根系硝酸还原酶、亚硝酸还原酶、谷草转氨酶、谷丙转氨酶、谷氨酰胺合成酶活性均较高；而F1处理的酶活性在处理末期显著降低，其中谷氨酰胺合成酶活性比对照降低33.33%。

DETERMINATION OF AMMONIACAL NITROGEN CONTENT IN THE PRESENCE OF OTHER SUBSTANCES WHICH RELEASE AMMONIA WHEN TREATED WITH SODIUM HYDROXIDE.

在氢氧化钠作用下产生的氨的其它游离物质中的氨型氮含量的测定。

The relative contribution of bacteria and archaea to ammonia oxidation is essential for our understanding of global nitrogen cycle.

氨氧化古菌和细菌对地球氨氧化过程的相对贡献率，是目前全球氮循环研究最重要的微生物生态学问题之一。

Aquatic crustaceans are typical ammonotelic animals. They excrete nitrogenous wastes in the form of ammonia. However, under high salinity, the hemolymph of Penaeus Monodon was found to contain a large quantity of urea. The aim of this thesis was to investigate the mechanism of how nitrogenous metabolites change under different salinities.

水生甲壳类是典型的排氨型动物，体内含氮废物以氮的型式代谢，但草虾於高盐环境下，其血淋巴中却产生大量的尿素，本论文研究的目的即在探讨含氮代谢物在环境盐度变化下的转换机制。

The nitrogen removal experiment implies that the nitrogen removal efficiency is very high. The ratio of NH_4~--N/TN is approximately equal to the ratio of TN removal. TN removal efficiency is mainly affected by the influent NH_4~--N concentration, and the optimal TN removal efficiency can be prejudged by the ratio of influent NH_4~--N/TN.

通过对反应器的脱氮研究，发现该反应器的NH_4~--N去除率非常高，发现进水NH_4~--N／TN的百分比值基本上与总氮的去除率一致，脱氮的效果基本取决于进水氨的浓度，最佳的TN的去除效率能通过进水的NH_4~--N／TN比例来判断。

Suger and Vc in the fruit increased,and the total acid content of fruit was not affected.

随着氨态氮或酰胺态氮比例的提高，叶片中全氮、全磷含量增加，果实中硝酸盐含量下降，还原糖、Vc含量上升，总酸含量不受影响。

With the increase of NH4N or CO(NH2)2N ratio in nutrient solution,the concentration of total N,P in the leaves increased.

当氨态氮或酰胺态氮占营养液总氮量的75%时，植株生长受抑制。

Nearly all the isolates were likely to utilize NZ amine, sodium acetate, sodium propionate and Tween-80, but potassium nitrate and sodium benzoate, sodium succinate, sodium citrate occurred with different strains.

所有参试菌株能很好地利用乙酸钠、丙酸钠和丙酮酸钠，但对其它有机酸的利用各不相同。大多数菌株能利用酪蛋白、牛肉膏等有机氮，一些菌株可利用氨态氮和硝态氮。

The effect of N forms and Ratios on iron nutrition in hydroponically grown lettuce were investigated. It was found that suitable ratioNO3--N:NH4+-N:CO(NH22 =6:6:0 in nutrient solution can significantly promote plant growth, raise chlorophyll content, improve plant iron utilization efficiency, and reduces nitrate content accumulation in leaves, and the cost of nutrient solution was thus reduced.

硝态氮、氨态氮与酰胺态氮及其不同配比对水培油菜铁素营养的影响试验，结果表明，不同形态氮素显著影响植物的铁素营养状况，NO_3~--N：NH_4~--N：CO(NH_2)_2为6：6：0的处理比单一NO_3~--N使用处理，能促进水培油菜生长，提高叶绿素含量，增加植物体内铁的活性，降低叶片中硝酸盐含量的积累，降低营养液成本。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。