查询词典 thin layer

The ultrastructure characters of pollen grain in Brassica napus are:1There are vacuoles in cytoplasm but no starch grain in uniceelluar pollengrain.2The veget- ative nucleus of bicellular pollen grain is generally spheroidal;while the generative cell is spinde-shaped,with a big nucleus,thin layer of cytoplasmand few cell orgens,no cell wall.3In three-celled pollen grain the sperm cell is separated from the cytoplasm of vegetative cell by two layers of plasmic membrances.

Brassica napus的花粉粒，在不同发育时期超微结构的特征如下：1单胞花粉粒有一个球形的细胞核和明显的核仁，细胞质内出现液泡，缺少典型的淀粉粒。2双胞花粉粒的营养核多为球形。生殖细胞纺锤形，无细胞壁，细胞核比例大，细胞质呈薄层，细胞器少。3三胞花粉粒有一个裂片状的营养核和两个纺锤形的精细胞，精细胞无壁，以两层质膜与营养细胞的细胞质相隔。

Thin-layer boilover, since the impact in term of radiation is still

还应当指出，薄层boilover已经研究主要在实验室规模的[ 9-12 ] 。

Coli BL21(DE3) with the amount of 11.49% through thin layer chromatography scanning analysis. Cavia cobaya was immunized using the purified cytorrhyctes to produce the anti-serum. Through the determination of the optimum working conditions, the sensitivity test, the specificity test, repeatability test and sample simulation test, the indirect ELISA method was established, which is a broad-spectrum, rapid and specific to detect various of food-poisoning Vibrio simultaneously.

融合毒素蛋白包涵体经纯化，免疫豚鼠制备血清抗体，确定间接ELISA的最佳工作条件，并进行敏感性、特异性、重复性及模拟样品检测试验，建立了食物中毒性弧菌广谱、快速、特异的同步免疫学检测方法。

The free radical scavenging properties of six Aloe species are to be investigated in some modified chemical system. The antioxidant was purified by silica column and thin layer chromatography and analyzed by HPLC. A fraction was purified from A. brevifolia Mill showed the most effective scavenging activities on 〓 and ·OH (66. 01% and 38. 98% respectively). With the analysis of IR spectrum, UV spectrum and mass spectrum, the structure of FA was identifed as 8-C-D-glucopyranosyl-2- [2-hydroxy] propyl-5-methyl-7-hydroxychromone. Its scavenging activity on free radicals is higher than that of aloe-emodin. Its antioxidant activity may be due to the phenoxyl on glucosyl chromone which can be react with free radicals and form relatively stable free radicals.

本研究利用分别产生超氧阴离子自由基和羟自由基的化学模型体系研究比较了不同品种芦荟提取物的清除活性氧自由基的抗氧化作用，进一步利用硅胶柱结合薄层层析法和反相高压液相色谱法，从短叶芦荟叶子中首次分离了具有较强自由基清除能力（超氧阴离子自由基和羟自由基清除率分别为66.01％和38.98％）的成分FA，利用红外光谱、紫外光谱和质谱等仪器分析结果推断出该活性成分的分子结构为8-C-吡喃葡萄糖-2-[2-羟基]-丙基-5-甲基-7-羟基对氧萘酮，它的自由基清除能力高于芦荟大黄素，是一种天然抗氧化剂。

The major secondary metabolic products of all Chinese Cladonia species were determined by mean of thin-layer chromatography . Nineteen lichen substances are reported and the combination of these substances is used as one of the taxonomic characters.

用薄层色谱法测定了中国石蕊属地衣所有种类的次生代谢产物，共测出19种地衣物质并将其在不同种中的不同组合或是否存在作为分类特征之一。

Multilayered structure of compositionally modulated alloys, in which there are thin film effect, interface effect, coupling effect and periodicity effect present, may give rise to enhanced or novel layer property.

组分调制合金的多层膜结构中由于存在薄膜效应、界面效应、耦合效应和周期性效应而使特性增强或产生出新颖的特性。

The effects of the growing condiction and the native oxide layer of Si substrate on the quality of ZnO thin films was studied in detail.

由于紫外波段激光器在信息显示和信息存储特别是在海底探测，紫外通讯和光存储，医疗和诊断，防伪和检测，分析仪器等方面都有十分重要的应用，是一项具有重要应用前景的基础研究。

Leaves evergreen, deciduous or semideciduous, alternate, sometimes clustered at stem apex; margin entire, very rarely crenulate, abaxial indumentum sometimes with a pellicle (a thin skinlike layer on the surface).

灌木或乔木陆生的或附生，常绿的叶，落叶或半落叶，互生，有时在茎先端的簇生；边缘全缘，极少具细圆齿，背面毛被有时具一表膜。

The skin defects on nude mice grafted with acellular dermal matrix remained uncured with a thin layer of crusta covering them, and margins of the skin defects contracted.

对照组裸鼠术后1个月时背部创面未愈合，仍覆盖薄层痂皮，创缘轻度收缩。

Thin layer chromatography analysis revealed the absence of cyanidin in all whiteflowered transformants.

薄层色层分析的结果显示，所有白色花朶的转殖株皆缺乏花青素。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。