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by comparison to相关的网络例句

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In this paper, an efficient and easy biological screening method based on the sensitivity to lovastatin of Neurospora crassa was built to deal with the mutant strain rudely by UV mutation. A high-level strain was screened in the shaking flask culture incorporating with TLC and HPLC. A comparison between this two methods also was originally discussed while identifying dyeing using bromophenol blue as the better treatment of TLC, and offering a kind of simple, practical, fast and economical determination qualitatively and quantitatively.

本文有鉴于此,通过紫外诱变处理,并基于粗糙脉孢酶对洛伐他汀的生物敏感性,对诱变菌株进行了初筛;同时,采用摇瓶培养,结合TLC和HPLC的分析方法,复筛出一株高产菌株;对复筛过程两种分析方法分别进行了初步探讨,比较其优劣,确定TLC法经溴酚兰显色剂显色处理为较佳方式;从而,建立了一套简单、实用、快速、经济且有效的洛伐他汀生产菌诱变筛选方法。

To study the bioactive components from water soluble extract of the Chinese eaglewood, various column chromatography of Chinese eaglewood led to the isolation of ten compounds. Their structures were elucidated as 2,3-bis(3-hydroxyphenyl)- propan-1-ol (1), [(2R,3R)-3-(4-amino-3,5-dimethoxyphenyl)oxiran-2-yl]methanol (2), 8-chloro-4'- methoxy-5,6,7,3'-tetrahydroxy-2-(2-phenethyl)-5,6,7,8-tetrahydrochromone (3), 4'-methoxy-5,6,7,3'-tetrahydroxy-2--5,6,7,8-tetrahydrochromone (4), the isomer of 4 (5), 4'-methoxy-5,6,7,8-tetrahydroxy-2-(3'-hydroxyphenethyl)-5,6,7,8- tetrahydrochromenone (6), 4'-methoxyisoagarotetrol (7), 6-hydroxy-2-(2-hydroxy-2- phenethyl)-chromone (8), 6-hydroxy-2-(2-phenethyl)-chromone (9), 6-hydroxy-2-(4'- hydroxy-2-phenethyl)-chromone (10), and Guaiacylacetone (11) by means of spectral analysis and comparison with references.

为了进一步发现沉香中具有生理活性的化学成分,本文对国产沉香的水溶性成分进行了研究,从中分离得到11个化合物,通过红外、紫外、质谱、核磁共振(1H-NMR, 13C-NMR, COSY, HSQC, HMBC, ROESY)波谱解析,分别鉴定为:2,3-二(3-羟基苯基)-丙-1-醇(1),[(2R,3R)-3-(4-氨基-3,5-二甲氧苯基)-2-氧化烯基]甲醇(2),8-氯-4'-甲氧基-5,6,7,3'-四羟基-2-(2-苯乙基)-5,6,7,8-四氢色原酮(3),4'-甲氧基-5,6,7,3'-四羟基-2-(2-苯乙基)-5,6,7,8-四氢色原酮(4),化合物3的差向异构体(5),4'-甲氧基-5,6,7,8-四羟基-2-(3'-羟基-2-苯乙基)-5,6,7,8-四氢色原酮(6),4'-甲氧基异沉香四醇(7),6-羟基-2-(2-羟基-2-苯乙基)色原酮(8),6-羟基-2-(2-苯乙基)色原酮(9),6-羟基-2-(4'-羟基-2-苯乙基)色原酮(10)和Guaiacylacetone (11)。

After Xiaolai buys them, let them suddenly " dig coal to black coalpit " work, gain a few " cash " hind, he changes the look to those by " dozen fold processing " the comparison that pass " cheap "" pet " on the body.

小赖将他们买下以后,猛地让他们&到黑煤窑挖煤&打工,赚到一些&现金&后,他将目光转向那些被&打折处理&过的比较&便宜&的&宠物&身上。

According to the research object and core, the competitory power of bio-industry, this thesis was unfolded from four aspects: Firstly, we put forward the competitory power of bio-industry theory, its concepts and categories, analytical frame and theories structure from analyzing its influence and determinant system; Secondly, appraisal models, based on deciding factors, composing factors and realizing factors, were respectively established, by using related mathematics method, cooperate theories, management and economics theories; Thirdly, according to the research on life cycle of bio-industry, we analyzed the characteristics and countermeasures of its competitory power changing at different stages; Fourthly, we focused on the core carrier of the bio-industry andits competitory power--the bio-industry cluster (life science industry park and biologicvalley), the bio-industry cluster theories and the park-area competitive factors and the capital market and the financing competition which are important drive factors of the competitory power of bio-industry. Firthly, making use of the evaluation model of bioindustrial competition ability, we carry on bioindustrial competition ability comparison of the United States and Chinas, and evaluate a substantial evidence.

针对本论文的研究对象和研究核心——生物产业竞争力,从五个方面展开研究:一是构建生物产业竞争力理论,提出和界定生物产业竞争力的概念和范畴,从影响和决定因素系统分析入手,研究生物产业竞争力的分析框架和理论结构;二是创建生物产业竞争力分析评价指标体系与模型,运用相关数学方法、协同理论、经济学和管理学理论,以生物产业竞争力的决定因素、构成要素和实现要素为依据,分别建立分析评价模型;三是研究生物产业竞争力生命周期,针对生物产业发展的不同阶段和特点,分析生物产业竞争力变化特点和应对策略;四是研究生物产业及其竞争力的核心载体——生物产业集群(生命科学产业园、生物谷),研究生物产业集群理论和园区竞争要素,对生物产业竞争力的重要驱动因素——生物产业资本市场和融资竞争,进行分析探讨,并提出生物产业竞争的战略路径。

Plastic printed cards and membership cards to make the plate cylinder truck with a good book Edition, set machine that could stay out of the bottom side of the head, collers, minithoracotomy, and so on location, xcopying of collers 印张 for the page number and proofing for comparison on in order to prohibit imposition disnature, reverse caused by collers business card printing and membership card making quality accident.

胶印制卡和会员卡制作时,给在印版滚筒不卸装好书版,调好机械,并留不入书刊天头、不天脚、暗语等场所,需不兵编好的书刊页码与打样印张举行差比力差,以杜绝拆版错位、倒置等引起的书刊制卡和会员卡制作质量事不新。

And thus I provide the evidence to undermine the commonly held opinion that China's public companies improved their performance by increasing financial leverage ratio. Seventhly, the international comparison reveals that the development of capital market has direct influence on the industry performance and the capital markets of developed countries are more effective than those of developing ones. Whether the finance system is bank-dominated or capital-market-dominated means little to the effectiveness of capital market and also the industry productivity. Eighthly, capital market, bank and FDI differ markedly in the mechanism of financing selection, supervisory effectiveness and industry characteristics. Averagely, capital market is the most appropriate mechanism among the three out-sourcing financing, considering the supervisory cost and effectiveness comprehensively. Certainly, some flaws remain in this study.

因此,我们认为,中国各产业上市公司产业绩效的提高不是通过提高财务杠杆比例来实现的;第七,基于资本市场自身的国际比较研究表明,资本市场发展程度直接影响其对产业绩效的改善和促进程度,成熟市场的资本配置效率显著高于新兴市场,而金融体系以银行为主导还是以资本市场为主导,并不影响资本市场功能的有效发挥,也不对产业绩效的影响产生效率上的差异,仅仅表现为在多大规模或范围内对产业绩效产生影响;第八,基于资本市场、银行贷款及外商投资3种外源融资方式对产业绩效影响的比较研究,三种方式在融资选择机制、监督力以及所影响的产业特征方面均存在显著差异,三者对不同产业绩效的影响呈现互补作用,而资本市场是监督成本与效力结合较好的融资方式。

Through the analysis and comparison of CT amd MRI data of 60 cases with subdural hematomas at cerebral falx or tentorium of cerebellum,we get more and further knowledge about MRI can provide correct diagnosis by combining imaging and clinic contributing to eleviating diagnositic rate,and MRI is superior to CT in qualitative diagnosis.

通过60例大脑镰、小脑幕硬膜下血肿的CT、MRI表现的比较分析,得到了进一步的认识,有助于提高诊断符合率,MRI在定位诊断方面优于CT。

The results show that the particles in the two phosphor samples are overall spherical-shaped with a mean size of ~300 nm, and their main emission peaks under 147 nm VUV excitation are located at 619 nm. In comparison with Y0.95Eu0.05PO4 phosphor, Y095Eu0.05 (P0.2V0.8)O4 phosphor is a more promising candidate for red-emitting PDP phosphor application due to its higher homochromy and its chromaticity coordinates closer to flammulated chromaticity coordinates (0.67, 0.33) regulated by National Television Standard Committee.

结果表明,制得的Y0.95Eu0.05P(下标 1-xVO4(x:0,0.8)荧光粉的粒径约为300nm,在147nm真空紫外激发下,发射光谱的主峰位于619nm;与Y0.95Eu0.05PO4荧光粉相比,Y0.95Eu0.05(P0.2V0.8)O4具有更好的色纯度,它的色度坐标更接近国际电视标准委员会规定的红色色度坐标(0.67, 0.33),是具有很好应用前景的PDP红色荧光粉。

In this thesis , I use relevant theories of regional economics,system engineering methord ,and industry"s economics, and adopt research methords of gange analysis , facts analysis and comparison analysis to make objective and just appraisal on the actural conditions of each country regional economic development of Hubei province on the basis of setting up the comprehensive appraising system of country economic strength ; and I divide all coutry of Hubei into three classes more developed country , the undeveloped country and poor country and analyse the reasons for forming three kinds of different development levels, then I set up plural linear regression model to announce the role of every influence factor in Hubei country economic development by regarding economic development level as depentent variable and regarding the seven influence factors(stock of the capital .industrial structure,government"s efficiency ,economic vigor ,technological innovation ability,agricultu ral innovationability, agr icultural resource and export-oriented degree of economy )as independent variable.

本文运用区域经济学、计量经济学、产业经济学的相关理论,采用规范分析、实证分析、比较分析相结合的研究方法,在建立县域经济综合实力评价体系的基础上,对湖北省各个县域经济发展的实际情况作出了客观公正的评价,并把湖北各县域分为三大类:较发达县、欠发达县和贫困县,且对形成三类县域不同发展水平的原因进行了分析。然后以经济发展水平为因变量,以资本存量、产业结构、政府效率、经济活力、技术创新能力、农业资源禀赋和经济外向度等七个方面的影响因素为自变量,建立多元线性回归模型,揭示各影响因素在湖北县域经济发展中的作用。

By the comparison of the current CAT activity, it is found that the gasometric method easy to use, but it could not be applied widely because of some constraints. Facility gasometric method, however, solves the problems and proves to be scientific and economic.

通过比较现有的过氧化氢酶活性测试方法发现,气量法尽管是最简便的方法,但存在很多问题,不利於广泛使用,而简易气量法则解决了前人气量法存在的问题。

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推荐网络例句

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。