主要
- 与 主要 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results demonstrated that the level of ROS was greater in embryo than in aleurone layer, and only very little ROS could be detected in starch. Furthermore, the ROS produced in embryo were mainly localized inside cells but not on cell membrane. By contrast, ROS from aleurone layer were accumulated on cell membrane.
结果表明:胚细胞产生的活性氧最多,糊粉层细胞次之,淀粉细胞几乎不产生活性氧;而且胚细胞产生的活性氧主要定位在细胞内,细胞膜上不产生;糊粉层细胞产生的活性氧主要定位在细胞膜。
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By reviewing carefully original literature,it is pointed out that pursing a more general reciprocity law maby the most motive of the development of algebraic number theory, usual material mainly emphasizes the function of Fermats last theorem.
通过原始文献的深入分析,研究表明:一般互反定律的寻求可能是代数数论发展的最主要动力,而通常文献中主要强调了费马大定理的作用。
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Main work follows:(1) In the first part of this paper, a historical development of the number theory before Gauss is reviewed.Based on the systematic analysis of Gauss"s work in science and mathematics, inquiry into the mathematical background that Disquisitiones Arithmeticae appeals and Gauss"s congruent theory;(2) The development process of Fermat"s little theorem and its important function in the compositeness test is elaborated through original literature.we think that the first three section of Disquisitiones Arithmeticae is a summary and development for ancestors" work about Fermat"s little theorem,show that Fermat"s little theorem played an important role in the elementary number theory;(3) With the two main sources of the quadratic reciprocity law, investigating Fermat,Euler,Lagrange,Legendre, until the related work of Gauss,the way to realize the laws huge push to the development of algebraic number theory in 19 centuries.
本文主要做了以下工作:(1)首先回顾了高斯之前的数论研究状况,在系统分析高斯的科学与数学成就的基础上,探讨了《算术研究》出现的数学背景和高斯的同余理论;(2)通过对原始文献的系统解读,深入分析了费马小定理发现发展的历程以及在素性检验中的重要作用,指出《算术研究》前三节是高斯在总结并发展了前人对该定理研究的基础上形成的,并揭示了费马小定理在初等数论定理证明中的核心地位;(3)以二次互反律的两个主要来源为线索,详细考察了费马,欧拉,拉格朗目,勒让德,直到高斯的相关工作,揭示了该定律对十九世纪数论发展的巨大推动作用。
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This paper intends to apply the theory of conversational implicature into the conversations of Roman fever's main characters(Alida﹒Sladea and Grice﹒Ansley)to give a pragmatic analysis , in order to help readers better understand the development of stoy and the main characters, and ultimately comprehend the work's theme.
本文拟将运用会话含义理论对《罗马热》中主要人物(Alida﹒Sladea与Grice﹒Ansley)阿丽达·斯莱德与格丽丝·安斯雷)会话进行语用分析,以帮助读者更好的了解故事情节发展和主要人物,并最终领悟作品主题。
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Combining the performance evaluation (activity, selectivity and stability) and the characterization of the catalysts (XRD, TPD, FTIR and the pore structure measure), it can be concluded that :(1)The activity of modified β is higher than MCM-22, but the selectivity of ethylbenzene is lower about 3% than that of MCM-22;(2)The mounts of diethylbenzene and the other by-products are higher 1.7 times and 1.5 times than these of MCM-22 respectively;(3)The catalytic performance of zeolite mixture is nearly equal to modified β, but the selectivity of ethylbenzene is higher about 0.5% than that of modified β;(4)The catalytic activity of zeolite is mainly correlated with the number of acid sites, strength and distribution, and the distribution of products is determined by the binding energy of ethylbenzene and the pore structure, while the stability of catalyst is affected by the amount of poly-ring aromatic alkylate and the pore structure.
以性能评价和特性表征(XRD、TPD、FTIR和孔结构测定)相结合的方式,对上述三种催化剂性能比较的结果表明:(1)改性的活性明显高于MCM-22,但乙苯选择性却低于MCM-22绝对差约3%;(2)改性(上二乙苯和其他副产物的生成量分别约为MCM-22上对应值的1.7和1.5倍左右;(3)混合型催化剂的性能与改性相仿,但乙苯选择性提高0.5%左右;(4)对乙苯合成,沸石催化剂的活性主要取决于其B酸中心数、酸强度及酸分布,产物分布则取决于催化剂表面的乙苯脱附能垒值和孔道结构,而稠环芳烃的生成量和催化剂孔道结构是影响催化剂稳定性的主要因素。
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The woods are good Switzerland lan de the wooden industry limited company is the natural mu pi specialized deep processing enterprise, the company introduces the advanced German edge sealing strip production equipment (the JOSTING alligator shears, KUPER refers to meeting machine, vertical putting together machine, divides cutting machine, the duspohl back paper machine, the kuhlmeyer polishing machine and so on), mainly produces the solid mu pi edge sealing strip and the gable mu pi product, the year production mu pi product 800,000 square meters, the year production lignin pastes the kneading board 5 million square meters.
森佳。瑞兰德木业有限公司是天然木皮专业深加工企业,公司引进先进的德国封边条生产设备(JOSTING的剪切机,KUPER的指接机、纵拼机、分切机、duspohl的背纸机、kuhlmeyer的砂光机等),主要生产实木皮封边条和包覆木皮产品,年生产木皮产品80万平米,年生产木质贴面板500万平米。我公司自成立来以"诚信为根,质量为本"的经营理念,以先进的生产设备和技术,以高品质的产品,以优质的服务,以良好的信誉赢得了广大客户的信赖和好评,公司的产品主要销往北京、天津、河北、辽宁、吉林、黑龙江等省市各大中型家具生产企业,远销东南亚及欧美市场。
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The development area's predatory privilege in resources owing to special system arrangement should be abolished gradually by means of the just allocation of the profits from institutional supply to fully realize the transition of the general adoption of the market principle in resource allocation and achieve the change of development area from its major dependency on excess system supply into on endogenous system innovation.
通过制度供给的泛利化,逐步消除开发区由于特殊制度安排所获得的资源掠夺特权,真正实现资源配置的市场化,实现开发区发展从主要依靠超额制度供给到主要依靠内生制度创新的转变。
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Then mainly and secondary risk factor analyze to BOT project on the basis of consulting a large number of materials, choose the main participant based on project of the fuzzy method to carry on quantitative appraisal to it, the result appraised is applied to the concrete research of allocation of risks.
然后在查阅大量资料的基础上对BOT项目中的主要及次要风险因素进行分析,并选择模糊方法基于项目的主要参与方对其进行定量的评价,评价的结果应用于风险分担的具体研究中。
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During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica
阿拉伯芥是第一个完成基因体定序的开花植物,其基因体资讯提供植物学研究的重要依据;在解析阿拉伯芥属物种的亲缘关系以及种化机制等重要的演化议题时,阿拉伯芥近缘的野生物种自然成了不可或缺的关键;跟阿拉伯芥近缘的物种包括A halleri及A lyrata,其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾,与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽,而A lyrata ssp kamchatica主要分布於东北亚及台湾,与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔,这样的分布模式暗示异域种化的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种化时期的族群遗传结构,本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种,两对互为亚种的姊妹群,以阿拉伯芥为外群进行研究,在四个物种完成98个同源基因的分子序列,利用套装软体MCMCcoal来估算祖先物种的遗传变异,亦估算现生物种的核苷酸歧异度,观察到?多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度,显示异域种化模型并无法完全解释阿拉伯芥属物种的种化模式,在某些物种配对间邻域种化模式应比异域种化更为可能;在基因树与物种树的比较,98个基因片段的亲缘模式只有28个是与已知物种树一致的,有23个基因其树状图支持{ lyrata} thaliana的型式,藉由kamchatica位置的变化以及估算各物种配对间的平均同义置换率,推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。
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The results are listed as following :㏕he best anti-erosion proportion of resin present is 25wt% in the condition of silicon carbide reinforced SMCC, while the alumina reinforced SMCC is 40wt%.(2) The better anti-erosion results was achieved with the ratio of silicone resin to acrylic resin containing hydroxy being 3: 1.㏕he composites coating tends to be more brittle when added in alundum particles. It also means that the maximum erosion peak of alundum reinforced SMCC tends to normal angle.甌he change of erosion rate of SMCC can be divided into two stages with the increment erodent velocity: the slow erosion stage of the beginning and the stable erosion stage.
首次发现:①SiC增强的复合涂料涂层,树脂含量为25wt%时,具有最佳耐冲蚀性能:Al_2O_3增强的复合涂料涂层,树脂含量为40wt%时,具有最佳耐冲蚀性能;②SiC增强的涂料,有机硅树脂与丙烯酸树脂的比例为3:1时的耐冲蚀性能好于1:1的复合涂料涂层;③Al_2O_3增强体使涂层变脆的倾向大于以SiC为增强体的涂层,即SiC增强的复合涂料涂层的最大冲蚀率出现在30°,Al_2O_3增强的复合涂料涂层的最大冲蚀率出现在75°~90°之间;④低速冲蚀磨损机理主要是弹性变形与疲劳;高速冲蚀磨损机理主要是显微切削和显微犁耕。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。