含氮的

Ammonifying rate, nitrosifying rate,nitrifying rate and denitrifying rate were determined by measurement of conversion efficiency and accumulating rate of nitrogenous matter by ammonifying bacteria, nitrobacteria, nitrifying bacteria and denitrifying bacteria in the surface 0-1.5 cm of pond sediment from the intensive fish culture ponds.

通过对精养鱼池表层淤泥中氨化细菌、亚硝化细菌、硝化细菌和反硝化细菌对含氮物质转化率的测定，定量了解了上述细菌的氨化率、亚硝化率、硝化率和反硝化率。

Our report is of the first description of the fatty acid amide and fatty nitrile in the paleolake sediments and provides the basis for the nitrogen-containing lipids investigation in lake sediments.

本文首次在古湖相沉积物中报道了系列脂肪酸酰胺分子化石及系列脂肪腈化合物这两类物质，为我们更好地理解含氮类脂物分子化石在湖泊沉积物中的转化过程提供了一定的理论依据。

Two modified cotton stalk cellulose derivatives (CEN 1, CEN 2) were prepared by re action of epoxy activated cotton stalk cellulose powder with diethylenetriamine or triethylene tetramine , respectively.

我们近期研究［6，7］表明，由农业废弃物棉杆纤维制得的含氮纤维素醚衍生物对有毒的金属离子，尤其是对Hg2＋、Cd2＋、Cr3＋、Pb2＋。

Some experts say the best fertilizers for beets are low in nitrogen.

一些专家说，甜菜的最佳肥料是含氮少的。

Some experts say the best fertilizers for beets are low in nitrogen.

一些专家说最适合甜菜的好肥料是含氮量低的肥料。

One part of this study is introducing nitrogen-containing group to the 21-position of corticoids.

本文的一部分工作是对皮质激素的21-位进行结构修饰，即引入含氮基团，以期得到新型NOS抑制剂。

The present invention prepares aldehyde or ketone by catalytic oxidation of alcohol under microwave irradiation, which takes sodium tungstate and tungstic heteropolyacid salts as catalyst, takes bidentate ligand containing nitrogen and oxygen as additive and takes hydrogen peroxide as preparing oxidant.

本发明以钨酸钠和钨的杂多酸盐为催化剂，以含氧氮的双齿配体作为助剂，以双氧水为氧化剂，在微波辐照下催化氧化醇制备得醛或酮。

It can be seen from Table 1 that the residual recalcitrant organics consisted of alcohols (36.68%a),phenols (6.88%),ketonnes,quinines, parafins, nitrogenous and sulfur compounds.

从表1中可见，残余的不易分解的有机物包括了酒精36.68%），长链烷醇混合物(6.88%，酮类、奎宁，石蜡，含氮和硫化合物。

Analyses of spectroscopic and crystal structural data of iridium complexesIr(PR3)Cl and the Vaska's complex reveal that NHC ligands and phosphines have a similar donating ability toward Ir metal center.

并且从光谱分析及晶体结构数据发现[Ir(PR3)Cl]的错合物与Vaska's 错合物相当类似。因此，我们推论其含氮杂环碳烯与膦化物在ㄧ价铱金属上有相似的配位能力。

The novel molecular topological index was recommendedrelating to such atomic properties as electronegativity,electron number of valence shell,number of bonding electrons,the main quantum number of valence shell and bond length.

采用该拓扑指数对饱和烷烃、烷基苯、烷氧氯硅烷、卤代苯、含氮杂环化合物、碱金属卤化物及卤化锡的性质/活性进行了相关关系的研究。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。