含氮的

The results show that this fiber contains multi\|functional groups, such as nitrogen, oxygen, heterocycle compounds and metal complexes, and has a better antibacterial activity, with good characteristics of broad spectrum, long lastingness and high efficiency.

结果表明：该纤维不仅含有多种含氮、含氧、杂环等官能团，且形成金属络合物，对不同菌类具备优异的杀菌活性，并具有抗菌谱广，作用时间持久和效率高等特点。

The article studies the influence of nitrogen content of nitrocellulose on the mechanical properties of the diazidonitrazapentane propellant.

利用我国现有的力学性能测试手段全面研究了硝化棉含氮量对叠氮硝胺发射药低温力学性能的影响。

Author had started the research on design and synthesis of heterocycles several years ago, mainly focused on the design and synthesis of imidazole, thiazole, tetrazole derivatives and their glucosides, in which most of them may have some particular bioactivities.

本论文主要是围绕具有生理活性含氮杂环化合物的设计与合成而展开的，在论文工作中我们应用液相"一锅法"和固相组合化学方法进行了咪唑环、噻唑环、四氮唑环等具有生理活性的杂环化合物及其糖苷的合成。

The bay area has no substituent and has electron-withdrawing groups,such as bromine atom,cyano-group and 4-formyl phenoxy group compounds have strong absorption in 525 nm,when excitated them,they have strong yellow and salmon pink luminescence bettwen 538 and 566 nm.When introduce electron-donating substituents,such as phenoxy group,morpholinyl,piperidinyl and n-butylamino group,the absorption bathochromic shift while the electron-donating ability is improved,bettwen 536 and 692 nm have strong absorption,reach to the near-infrared region. When excitated them,only the phenoxy group compound has strong salmon pink luminescence in 572 nm,the others have no fluorescence.

其中，港湾位无取代的以及含吸电基团(—Br、—CN、对甲酰基苯氧基)化合物在525 nm左右处均有很强的吸收ε＞10~4M~(-1cm~(-1)，当光激发时，港湾位无取代、溴代和氰基取代物发出538～547 nm的强烈黄色荧光，对甲酰基苯氧基取代物则发出566 nm的强烈橙红色荧光；含供电基团(苯氧基、吗啉基、哌啶基、正丁氨基)化合物随着供电子能力的增强，吸收发生红移，在536～692 nm处均有很强的吸收ε＞10~4M~(-1cm~(-1)，达到了近红外区，当光激发时，只有苯氧基取代物发出572 nm的强烈橙红色荧光，而含氮供电基取代物均发生了荧光淬灭。

Heterotrophic nitrification bacteria are able to utilize organic carbon sources to grow and produce hydroxylamine, nitrite and nitrate from nitrogen compounds, and most of them can also denitrify these products to gaseous nitrogen compounds simultaneously.

异养硝化细菌能够在利用有机碳源生长的同时将含氮化合物硝化生成羟胺、亚硝酸盐、硝酸盐等产物，多数还能同时进行好氧反硝化作用，直接将硝化产物转化为含氮气体。

In this paper the sulpho nitro oxy carburizing and the hydrogen removing technology of round broach, the structure of diffusion layer and the relation between the depth, properties, the hydrogen content of diffusion layer and the service life of the broach are studied.

研究了连杆圆拉刀的氮碳硫氧共渗与去氢处理工艺，以及渗层组织结构、层深度、能、层含氮量与拉刀寿命的关系。

Four cephalosporin derivatives taking substituted or unsubstituted pyridiniomethyl group at 3-side were synthesized.

c、C-3位含氮甲基的头孢菌素衍生物：合成了4个含吡啶及取代吡啶头孢菌素衍生物。

For this reason, this paper tried to determine the change of the protein amount in milk protein fiber during the dyeing and finishing process by detecting the change of nitrogen content via the optimized Kjeldahl Nitrogen Analysis.

为此，通过优化改良凯氏定氮法测试工艺，尝试以含氮量的变化来表征染整化学加工引起蛋白质成分的变化。

Water-soluble nitrogen, amino acids,total volatile basic nitrogen,peroxide value, vitamin C consumption and KMnO4 consumption were detected, no significant changes were observed except the color which was light brown on the s.

检测了肫片辐照前后的感官性状、水溶性含氮物、游离氨基酸、挥发性盐基总氮、过氧化值、抗坏血酸消耗量和KMnO4消耗量，除肫片表面发生轻微褐变之外，未发现辐照对上述各项指标有显著性影响，证实了辐照处理肫片用于提高卫生质量和延长保质期是可行的。

Themost frequent are sulphur-containing molecules in the smell of rotteneggs, nitrogenous molecules and ketones andaldehydes, which cause bitter and rancid smells.

其中最常见的是有臭鸡蛋气味的含硫气体分子、含氮气体分子和丙酮及乙醛，后面这些气体则产生苦味和腐臭味。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。