查询词典 nitrogen

As there was no nitrogen in the solution before experiment, the nitrogen in amino acids should have resulted from deposition of 〓 from outside.

由于反应溶液中本不含氮，故氨基酸中的氮应是外来氮离子沉积于溶液中的结果。

Protein is mainly made of amino acids, its nitrogen content is generally not more than 30%%, while nitrogen content as per melamine molecular formula amounts to 66％%.

蛋白质主要由氨基酸组成，含氮量一般不超过30%%，而三聚氰胺的分子式含氮量达到66％。

But its return to original state product is mainly the ammonia nitrogen, but is not the ideal nitrogen.

但其还原产物主要是氨氮，而不是理想的氮气。

Ammonia nitrogen and total nitrogen removal rates were enhanced to about 95% and 90%.

采用干湿投配的措施对总氮去除效果进行了强化。

And the results suggested:Machurian Ash seedling leaf nitrogen content is linearly relative to the nitrogen supply levels.

根据实验分析结果可以得出如下结论：水曲柳幼苗苗叶片氮含量与供氮水平呈线性相关。

In order to develop and popularize organic-inorganic compound fertilizer for vegetablecrops, the effects of chemical nitrogen fertilizer application rate on yield and quality (nitratecontent, protein content, soluble sugar content, rough fiber content and Vitamin C content) of 4vegetables(Water spinach, Asparagus lettuce, Pak-choi, Radish)and nitrogen fertilizerutilization ration have been studied by pot experiment using ~(15)N trace technique.

中文摘要：为开发和推广蔬菜有机-无机专用复混肥，本文采用盆栽试验和~(15)N标记示踪技术探讨了化学氮肥用量对4种蔬菜(蕹菜、莴苣、小白菜、萝卜)产量、品质(硝酸盐、蛋白质、可溶性糖、粗纤维、维生素C含量)及氮肥利用率的影响，在保证蔬菜高产、优质、低污染的前提下，权衡化学氮肥用量与蔬菜产量、品质和化学氮肥利用率之间的关系，得到了4种蔬菜合理的化学氮肥用量。

At last, the combination of chlorophyll meter and the remote sensing, the use of chlorophyll fluorescence technique in the nutrition diagnosis of plant nitrogen, and the assessment of the forest ecosystem health and the evaluation of ecosystem services by the nutrition diagnosis of plant nitrogen, were discussed.

根据植物氮素营养诊断的发展脉络，总结了化学诊断和无损测试技术的主要内容，重点阐述了植株硝酸盐快速诊断、叶绿素仪和遥感技术在作物氮素营养诊断及氮肥推荐中的应用原理、优缺点以及发展现状，提出可将叶绿素仪和遥感技术结合使用、利用叶绿素荧光技术诊断植物氮素营养以及将植物氮素营养诊断技术应用于森林生态系统健康和生态系统服务功能的评估。

The results showed that the amount of nitrogen mineralized from the green manure added to soil was corelated with the effective cumulative temperature i.e.y=k[(T—15)D]~n in which y is the amount of nitrogen mineralized, D the number of days, T the actual temperature during incubation and k and n constants.

结果表明，在20—30℃淹水培养条件下，加入土壤中的绿肥氮矿化率与有效积温(T—15)D的关系，符合y=K[(T一15)D]~n经验公式的规律。

The cotton lint yield was correlative with nitrogen concentration in fruit-branch leaf, which would cause the lint yield reduction when it was lower or higher than critical nitrogen value in fruit-branch leaf.

在大田栽培条件下，于江苏南京和河南安阳设置了棉花施氮水平试验，依据Justes的临界氮浓度稀释模型确定方法，研究棉花花后果枝叶临界氮浓度稀释模型及其与棉花产量的关系。

Therefore, it is very important to study on high nitrogen content diamond synthesis in HPHT condition.In this study, we use a cubic anvil HPHT apparatus. Using catalysts, graphite and addition of NaN3, large green single crystal diamond with high nitrogen concentration is firstly synthesized by temperature gradient method.

本文使用国产六面项压机，首次用不同触媒(FeNiMnCo、FeNiCo)+C+不同比例的添加剂NaN3合成出具有完整晶型的优质深绿色高氮含量宝石级金刚石单晶，研究了NaN3对宝石级金刚石中氮含量及生长行为的影响。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。