查询词典 nitrogen

Effect of ammonia concentrations on growth of Chlorella vulgaris and nitrogen removal from media.

不同氮素形态及配比对蔬菜生长和品质的影响。

The results of N/P ratio test show that the removal of nitrogen and phosphorus by immobilized Chlorella is influenced by N/P ratio.

氮磷比试验结果表明，固定化小球藻对氮磷的去除受氮磷比的影响。

The content of chlorophyll all was decreased with the increase of maturity degree under three nitrogen forms.

叶绿素的含量都随着成熟度的增加而降低。

Nitrogen deficiency causes stunting of growth and chlorosis of older leaves, as chlorophyll pigments are broken down so their components can be reused in the young growing parts of the plants.

氮的缺乏可以导致生长的迟缓和老叶片的缺绿症，因为分解的叶绿素被新生的叶片重新利用了。

The differences of 7 kinds of essential amino acid content for people,11 kinds of essential amino acid content for pig,14 kinds of essential amino acid content for chook,amino acid content,grain yield,protein-nitrogen content and protein yield of brown rice between forage rice and eatable rice were significant or extremely significant.

饲料稻品种糙米中人体7种必需氨基酸含量、猪11种必需氨基酸含量、鸡14种必需氨基酸含量、氨基酸含量、籽粒产量、糙米蛋白氮含量和糙米蛋白质产量与食用稻品种之间差异显著或极显著。

Adopting sulphur-free method to protect color, low temperature chowchow, vacuum filter, air current continuous drying and nitrogen-filling packing makes the vitamin and the micro element of the saint female fruit the maximum content.

项目简介：项目建设起止日期从2001.7~2002.6月，总投资656万元，建设一条高质量，现代化的生产1000吨圣女番茄蜜饯，采用无硫护色，低温糖渍，真空渗糖，气流连续干燥和充氮包装等工序，使之最大限度地保存了圣女果的维生素及微量元素，公司发展无公害原料基地6000亩，带动农户3000余户，农民增收550万元，解决下岗职工和移民就业500万，年销售收入1475.65万元，利税297.13万元，投入产出比1：2.2，番茄蜜饯因其独特的加工工艺使对圣女果脯情有独钟的港，澳台同胞，海外华人及各国消费者的青睐。

The essay introduces a new way to measure the total nitrogen of surface water in ion chromatograph .

本文提出了采用离子色谱法测定地表水中总氮的新方法，对离子色谱条件和流动相的选择进行了研究，方法具有良好的精确度、准确度，用于实际样品分析，结果令人满意。

As well as activity was exhibited. Theaddition of cinchonidine led to a remarkable increase in the reaction rate, as confirmed bythe IR study that the modifier activates the carbonyl groups of the reactant through itsquinuclidine nitrogen. On the contrary,〓 exerted a strong inhibition effect on theenantioselective hydrogenation. Chapter 3 Finely dispersed polyvinylpyrrolidone-stabilized iridium andbimetallic clusters were prepared by the alcohol-water reduction method.

第三章 采用醇水还原的方法制备了聚乙烯基吡咯烷酮稳定的铱纳米簇及双金属纳米簇，对丙酮酸甲酯的催化氢化表明，在铱金属簇催化体系中，辛可尼定不仅诱导了一定的对映选择性，同时对反应活性有明显的促进作用，平均反应速率可提高2-6倍。

The results show that the Raman peaks of N-N and O-H stretching vibration in nitrogen hydrates are observed at 2322.4cm-1 and 3092.1cm-1, respectively, which are very similar to those in natural air clathrate hydrates.

结果表明，氮气水合物中的N-N和O-O键的拉曼峰分别为2322.4cm-1和 3092.1.8cm-1，与天然的空气水合物中的数据十分接近。

Evaluation index of industrial water pollution are defined based on industrial wastewater emission standards and the emphasis of water control, according to industrial water pollution emissions data of 31 provinces in China impact of water pollution is calculated by the improved entropy method, lead, cyanide and ammonia nitrogen are in the top three on the impact of water pollution, water pollutant index are divided into heavy metals index and composite index by variable cluster.

根据我国工业各行业的排放标准和水污染控制重点，确定了我国工业水污染状况评价指标，采用改进熵权法对我国31个省区工业水污染物的排放数据进行计算，得到工业废水中铅、氰化物、氮氨对水污染影响居于前三位，应用变量聚类将水污染物分成重金属指标和复合指标，通过熵值对全国各地区工业水污染总体状况、重金属指标、复合指标进行排序，得到东部、中部地区是我国工业水污染较严重地区，但两个地区工业水污染原因有较大区别。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。