Preoxygenation replaces the primarily nitrogenous mixture of ambient air , which constitutes the patient ' s functional residual capacity , with oxygen 這樣可以用氧氣取代之前被氮?dú)庹紦?jù)的肺泡。
Computer analysis of the cdna and its encoding protein the amino acid sequence encoded by full - length cdna is deduced by u - sing the blast procedure from ncbi . the homogeneous comparison and analysis are performed in the genbank and protein date house , while the functional residual sequence of the protein is analyzed in the molecular biological net , ht - tp : / / www 全長山na序列及其編碼蛋白質(zhì)的計算機(jī)分析從cdna的序列推導(dǎo)出它所編碼的氨基酸序列,應(yīng)用ncbi提供的blast程序在genbank數(shù)據(jù)庫和蛋白質(zhì)數(shù)據(jù)庫進(jìn)行同源性比較分析,在n tp : 。