查询词典 emission spectrum

The present invention provides important theoretic base for constituting recombinant virus with expanded host domain and provides one hopeful way for developing recombinant virus pesticide with wide spectrum pesticidal activity, and improving and developing genetically the expression vector system.

本发明为构建宿主域拓展的重组病毒提供了重要理论依据，并且为开发出具有广谱杀虫活性的重组病毒杀虫剂以及表达载体系统的遗传改良和开发提供了一条有希望的途径。

Based on phenotypical and biochemical properties as well as its 16S rRNA gene sequence, the bacterium was identified as Paenibacillus polymyxa. In vitro antifungal spectrum assay vindicate that it was active against a broad range of phytopathogens and inhibited the growth of thirteen fungal pathogens.

采用对峙培养法筛选拮抗内生细菌，根据菌株形态、生理生化特性结合16S rRNA基因序列分析鉴定菌株；采用硫酸铵沉淀法提取抗菌粗蛋白，研究其对水稻恶苗病菌菌丝生长和孢子萌发的影响。

Qualitative and quantitative analysis of chemical constituents.(1) Based on the GC spectrum of 2 species, Whitmania pigra and Poecilobdella manillensis shows little difference between them. 24 kinds of fatty acid in Whitmania pigra was firstly separated and determined by GC/MS. Among them, phenylacetic acid is a component which has active of anticancer. The existence of many unsaturated fatty acid provides chemical evidence for ShuiZhi's functions of invigorate the circulation of blood.

六首次对两种水蛭的脂肪酸类化合物进行了GC定性分析，发现其脂肪酸组成未见明显差异，后又对宽体金线蛭的脂肪酸类化合物进行了GC-MS分析，初步鉴定出24个化合物，包括苯乙酸、龙脑和22种脂肪酸，其中所含的苯乙酸具有抗肿瘤活性，大量不饱和脂肪酸的存在为水蛭在血液流变学方面的药理作用提供了一定的化学依据。

This and previous studies have shown that pheophytin absorption peaks appears at 412 nm in the violet region of spectrum, and 670 nm in the red.

由实测数据及相关文献推断出脱镁叶绿素蓝光和红光吸收峰分别位于412和670nm波段，并采用多元线性回归对脱镁叶绿素和叶绿素a的比吸收系数进行研究。

While the proportion of pheophytin in total pigment concentration increased, the absorption peak in the blue region of spectrum deviated from 440 nm to near 412 nm. The absorption peak height in the blue region was mainly influenced by pheophytin concentration, whereas the height in the red was decided more by chlorophyll a concentration.

随脱镁叶绿素占色素总浓度比例的增大，浮游植物吸收曲线上蓝光吸收峰偏离440nm波段，逐渐向412nm波段靠近，并得到蓝光波段吸收峰的高度由脱镁叶绿素浓度决定，而红光波段吸收峰的高度由叶绿素a浓度决定。

The latter was investigated by the phosphomolybdate blue method, high-resolution TEM and XPS spectrum.

后一个阶段的水解机理用磷钼蓝法、高倍透射电镜和XPS图谱等进行了探索。

On the basis of ascertaining that phosphomolybdic acid modified platinum electrode has higher catalytic activity to methanol oxidation , three kinds of transition metal substituted phosphomolybdic acids were synthesized, and the IR spectrum indicated that the compounds still kept Keggin structure.

在证实了磷钼酸修饰铂电极对甲醇氧化具有较高活性的基础上，合成了3种过渡金属取代的磷钼酸，通过红外光谱测试仍为Keggin结构，并制备了过渡金属取代磷钼酸修饰铂电极，研究了修饰铂电极在硫酸溶液中的电化学行为及对甲醇的催化氧化作用。

The relation between light source dimension and spectrum and photic coherence was discussed.

最后给出宽边耦合线巴伦的实验结果。4。得出光源线度和谱宽与光场相干性之间的关系。

The absorption spectrum of the product was determined by visible spectrophotometer,in which there are 6 maxium peaks located at 421.3,487.2,518.1,555.2,593.6 and 650.3nm,and proved that it is a more photoactive substance than tetraphenyl porphyrin.

经可见吸收光谱分析知，在氯仿介质中有6个大的吸收峰，波长分别为421.3、487.2、518.1、555.2、593.6和650.3nm，证明该卟啉是一种较四苯基卟啉更有效的光吸收剂。

In particular, compared with conventional fluorophores, the long-lasting phosphorescence nanotubes have a broad and continuous excitaion spectrum and are photochemically stable, which can be used as fluorescent probes in biological staining and diagnostics.

对于纳米结构的长余辉材料来说，它们在纳米器件的标记和显示上具有较大的应用前景。特别是对于纳米管状结构的长余辉来说，它们具有宽的连续发射带和光化学稳定性，使得它们在生物着色和诊断上可以用做荧光探针。

A small, rubber-headed hammer used in examination or diagnosis by percussion.

叩诊槌用在通过''。'振荡'。''所作的检查或诊断中的橡皮头的''。'小'。''槌

Affixes are limited in number in a language, and are generally classified into three subtypes, namely, prefix, suffix, and infix, depending on their position with reference to the root or stem of the word.

语言中词缀的数量总是有限的，根据它们跟词根或词干的相对位置，一般可以把词缀分外三小类：前缀，后缀和中缀。