This paper uses the Vector Space Model to express the features of event description segment and calculate the importance of feature words in different classes.
使用向量空间模型来表示事件描述片段的特征，并分类计算特征词的重要度，最后对文本中的事件片段进行定位和分类。
Objective: to construct hypoxia-inducible expression vector, which mediated reporter gene to express specially and efficiently in hypoxia environment.
目的：构建缺氧诱导表达载体，以介导报告基因在缺氧环境下的特异、高效表达。
The result showed that the transfer vector plasmid constructed with FPVTK genes can be used to express foreign gene in FPV recombinant.
实验结果表明，以TK基因构建的重组载体质粒可用于外源基因的重组表达研究。
Objective to construct recombinant human leptin mammalian cell expression vector, and to express recombinant human leptin in COS-7 cells.
目的构建重组人瘦素哺乳细胞表达载体并在COS 7细胞表达重组人瘦素。
Aim to clone human CD81 gene from peripheral blood lymphocytes, and construct its eukaryotic expression vector, and then express it in COS-7 cells.
目的从人外周血淋巴细胞中克隆出cd 81基因，构建真核表达质粒，并在COS - 7细胞中进行表达。
How to express, organize and process the global multi-scale spatial data better, particularly the massive vector data, has become a problem that attracts common attention from the GIS scholars.
如何更好地表达、组织与处理全球多尺度空间数据，尤其是海量矢量数据，已成为GIS学者普遍关注的问题。
Objective to construct an eukaryotic expression vector of compound multi-epitope gene of HCV and express the gene in COS7 cells.
目的建立丙型肝炎病毒(HCV)复合多表位基因的真核表达载体，并在COS7细胞中瞬时表达。
It was therefore preparation for constructing an expression plasmid vector to express exogenous genes.
为构建其启动外源基因的质粒表达载体作准备。
Objective to construct and express a recombinant adenovirus vector which can regulate expression of human tumor suppressor gene PTEN.
目的体外构建和表达可调控性人抑癌基因pten重组腺病毒。
Objective: To obtain GFP-RECK expression vector and to express it in glioma cell line SHG44.
目的：获得RECK基因GFP融合蛋白表达载体并使其在脑胶质瘤细胞SHG44中表达。
AIM: to construct a recombinant adenovirus vector carrying AFP promoter to specifically express a targeting gene in hepatocellular carcinoma HepG2 cells.
目的：建立一种在甲胎蛋白(afp)阳性的肝癌细胞中靶向表达目的基因的重组腺病毒载体。
AIM: to construct a recombinant adenovirus vector carrying AFP promoter to specifically express a targeting gene in hepatocellular carcinoma HepG2 cells.
目的：建立一种在甲胎蛋白(afp)阳性的肝癌细胞中靶向表达目的基因的重组腺病毒载体。
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