查询词典 elucidate

To elucidate the molecular basis of the attenuation ofDLA-EIAV in virulence thus provide theory foundation for designing HIV vaccine, thewhole genomes of DLA-EIAV and EJAV L provirus were cloned and sequenced. Aninfectious molecular clone derived from DLA-ELAV was constructed and characterized.Three DLA-EIAV/ L chimeric viruses were constructed. Promoting efficacy of the longterminal repeat of the DLA-EIAV was charactenzed.

为了揭示我国马传贫弱毒疫苗毒力致弱及免疫保护的分子机制，为人免疫缺陷病毒及其它慢病毒的免疫预防提供借鉴，我们对马传贫驴白细胞弱毒及其亲本马强毒EIAV L株前病毒进行了全基因克隆和序列测定，比较分析了二者的前病毒基因组核苷酸序列，在此基础上构建了EIAV驴白细胞弱毒株的感染性分子克隆和三株含有EIAV强/弱毒嵌合病毒基因组的重组质粒，并对EIAV弱毒株长末端重复序列的启动子活性进行了初步研究。

To elucidate the molecular basis of the attenuation ofDLA-EIAV in virulence thus provide theory foundation for designing HIV vaccine,thewhole genomes of DLA-EIAV and EIAV L provirus were cloned and sequenced.Aninfectious molecular clone derived from DLA-EIAV was constructed and characterized.Three DLA-EIAV/L chimeric viruses were constructed.Promoting efficacy of the longterminal repeatof the DLA-EIAV was characterized.

为了揭示我国马传贫弱毒疫苗毒力致弱及免疫保护的分子机制，为人免疫缺陷病毒及其它慢病毒的免疫预防提供借鉴，我们对马传贫驴白细胞弱毒及其亲本马强毒EIAV L株前病毒进行了全基因克隆和序列测定，比较分析了二者的前病毒基因组核苷酸序列，在此基础上构建了EIAV驴白细胞弱毒株的感染性分子克隆和三株含有EIAV强/弱毒嵌合病毒基因组的重组质粒，并对EIAV弱毒株长末端重复序列的启动子活性进行了初步研究。

In the dissertation, a new stabilization method, equal-density method was adopted to prepare modified asphalts with storage stability at high temperature. In this method, a compound was prepared by premixing polymer and filler, and the compound was mixed with asphalt to prepare Polymer-Modified Asphalt by changing the ratio of polymer and filler. The asphalts with good storage stability were formed with the addition of filler, by regulating the density difference between polymer and asphalt. With identifying the effect of composition factor and the technique conditions on mechanical properties of polymer/filler compound and the molecular distribution of the polymer, identifying the effect of composition factor and the technique conditions on the properties and structure of polymer/filler modified asphalt, Styrene-Butadiene-Styrene copolymer, Low Density PolyEthylene, Styrene-Ethylene-Butadiene-Styrene block copolymer modified asphalts with good storage stability and performance were prepared. Rheological method, gel content analysis and swelling measurement were adopted to elucidate the interaction between the polymer and filler. Filler reduced the difference between the polymer and asphalt with the premixing technique, which led to the improvement of the storage stability of the modified asphalts. The thermo-oxidative aging process of base asphalt and PMA were studied and the effect of antioxidant additives on the base asphalt and PMA were analyzed.

本论文采用等密度方法，即预先混合聚合物与填料制备复合物，复合物在沥青中会吸收油份而溶胀，改变填料的用量从而调节聚合物与沥青的密度差异的方法，制备出高温贮存稳定的改性沥青，并研究了工艺条件和配方因素对聚合物/填料复合物力学和聚合物分子量分布的影响，系统考察了工艺条件和配方因素对聚合物/填料改性沥青性能与形态结构的影响，研制出性能优良、高温贮存稳定的苯乙烯-丁二烯-苯乙烯三嵌段共聚物、氢化SBS、低密度聚乙烯改性沥青，并通过流变学分析方法及凝胶和溶胀测试探讨了聚合物与填料的相互作用，指出经过预混工艺填料改变了聚合物与沥青的密度差异，以此说明聚合物/填料改性沥青高温贮存稳定的原因；研究了基质沥青和聚合物改性沥青热氧老化过程，并分析了抗氧剂对基质沥青及聚合物改性沥青的影响，探讨了抗氧剂提高沥青耐老化性能的原因。

Objective To elucidate the role of the expression of epidermal growth factor receptor and DNA ploidy in the origination of renal cell carcinoma.

目的 探讨表皮生长因子受体表达和DNA倍体数与肾癌发生的关系。

To elucidate the evolution of 16S rRNA, we succeeded in replacing the 16S rRNA gene of an E.coli strain with all rrn operons deleted with the 16S rRNA gene of Bacillus subtilis.

为了进一步研究16S rRNA的进化，本文将Escherichia coli中最后一个拷贝的16S rRNA基因替换为Bacillus subtilis的16S rRNA 基因，得到了菌株SQ110BSX。

Objective This study attempts to elucidate the relationship between RET oncogene and Chinese patients with Hirschsprung's disease.

目的 从分子水平探讨先天性巨结肠的发病机理，了解中国人群HD发病与酪氨酸激酶受体基因突变的关系。

Objective: To observe the change of regional cerebral blood flow in different region of interest under quiet condition and performing hand motor condition with single photon emission tomography, elucidate the mechanism of the brain regions activated by simple hand motor (repetitive and sequential finger- to- thumb opposition movements in turn) and detect the role of active cortical areas by analyzing the difference of rCBF in different age groups.

目的：本研究的目的是运用单光子发射断层扫描仪对比观察正常人在安静状态下和执行手指简单运动状态下脑内不同感兴趣区（region of interest， ROI）的血流量变化情况，进而阐明简单运动模式下脑内运动相关功能区的激发情况，并通过分析不同年龄组运动区激发时血流量变化的差异来探讨运动功能区的作用，对于临床中枢神经系统瘫痪后的运动功能重建和康复训练具有指导意义。

Based on the faculty's incentive model (Figure 1-1), this research employs comprehensive expectation theory and fairness theory, together with efficiency theory, to better elucidate the relations between interchangeability of incentive methods and faculty's sense of fairness.

在高校教师激励模式（图1-1）的基础上，运用综合期望理论与公平理论研究的结果，并结合效用理论，能够更为清楚地说明激励方式的替代性与教师的奖酬公平感之间的关系。

To elucidate the mechanisms regulating TSHb expression, we isolated a 5.1-kb fragment of the red-spotted grouper 5'-flanking region by Genome walking .1.8kb of this upstream region was used to produce GFP reporter construct (pBK-TOL2) for analysis of tissue-specific expression in zebrafish embryos.

将起始密码子上游1864bp的启动子片段顺向克隆到pBK-TOL2载体中， pTSHb-TOL2重组质粒与转座酶mRNA共注射斑马鱼一细胞期受精卵，荧光显微镜观察发现，TSHb启动子驱动GFP在原始生殖细胞和垂体中表达。

Factor in that John is a serial instigator whose editorial model is to stretch the truth to elucidate a more fundamental underlying truth.

1811年，英国著名作家简奧斯汀完成了自己的处女作《理智和情感》，这位被誉为继莎士比亚后最伟大的作家，带领我们去体验内心深处的理智与情感的碰撞。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。