查询词典 vectors

Gene trap elements are also used in the construction of retrovirus vectors.

基因诱捕技术也被运用于反转录病毒载体的构建。

In order to study the construction of human IL-10 retrovirus vectors and influence on rat othotopic liver transplantation survival.

为探讨人白细胞介素10（hIL-10）逆转录病毒载体的构建及对大鼠原位肝移植存活期的影响。

In this s cheme, when model integration proceeds to the period of analogue updating, multiple reference states are reselected and optimal forecast vectors are est i mated from multiforecasts produced by the analoguedynamical model using the hy perplane approximation method. Such a "selectionestimation" procedure is peri od ically repeated until the entire forecast is completed.

这一方法通过引入相似更新周期的新概念，在预报进行到相似更新周期时重新选取多个参考态，并采用超平面近似法将相似动力模式产生的多个预报估计成最佳预报向量，这样的&选取-估计&过程循环往复，从而完成整个时段的预报。

The rhesus CD34 cells were isolated, transduced with the therapeutic and the control vectors, and reinfused 1 day after 400 rads TBI.

恒河猴CD34细胞被分离出来后，再用治疗性受控制的载子转导，然后用400 rads 全面照射细胞。

The noise of leather texture images was wiped off by adopting wavelet packet decomposition, and the characteristic rectors of images were extracted using co-occurrence matrix, then the characteristic vectors were clustered by modified FCM.

该系统对皮革纹理图像采用小波包分解去噪，并用共生矩阵提取皮革图像的纹理特征向量，用改进模糊聚类方法对样本特征样本向量进行聚类分析。

Vectors are like the music of Beethoven,rasters are like Mozart's.

矢量像贝多芬的音乐，试映图像莫札特。

Expression vectors pET-TPO and pBV-TPO were constructed to express full-length TPO cDNA in E.coli . Influence of SD-AUG and promotors on the expression level was studied.

在克隆并分析了TPO cDNA的基础上，将全长hTPO cDNA克隆到原核表达载体pET-15b和pBV220中得到了表达，并且以pBV220为载体探讨了SD序列与AUG之间的距离对cDNA表达效率的影响；为了进一步提高表达效率，将hTPO cDNA 5？

We found that neither the fusioned nor the non-fusioned forms of Hu-P68 cDNA open reading frame could express efficiently in the E. coli cells; in different prokaryotic expression vectors and under various promotors resulted in no distinctive variations. Deletion of 5'UTR by synthesis adaptors, deletion of 3'UTR or signal peptide sequence by PCR gained no gross improvement. Only the truncated API-I proteins were observed to be highly expressed when the 3'ORF fragment of the Hu-P68 cDNA was fusioned at the 3'end of PAI-I gene.

结果发现无论是以融合形式存在，还是以非融合形式存在，人的P68 cDNA基因在E.coli细胞中都未能获得高效表达：在不同表达载体中，不同启动子对P68 cDNA基因的表达没有显著差异；利用合成Adapter的方法删除5'UTR，及利用PCR技术删除3'UTR和信号肽序列对表达没有明显改善；分别表达被分割的P68 cDNA5'端编码区、中央编码区和3'端编码区均未见有明显表达；当P68 3'端编码区与高效表达蛋白PAI-Ⅰ基因3'末端融合时，仅见有PAI-Ⅰ以截断形式高效表达出来。

The packaging systems are based on the expression of helper functions by coinfecting re-combinant poxvirus vectors comprising recombinant polynucleotides.

所述包装系统基于通过包含重组多核苷酸的重组痘病毒载体的共感染表达辅助功能物。

In genetic engineering, multiple identical copies of a gene are produced in cloning vectors, such as plasmids and phages.

在遗传工程上，相同的多拷贝基因是由质粒或噬菌体这样的克隆载体产生的。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。