I am getting old. I am in the twilight of my life.我老了，到了生命的暮年。They fell into that twilight zone between military personnel and civilian employees.他们成了军队人员与平民雇员之间身份界定不清的人。Now both men are in the twilight of their careers....
McAb EGA - 4 H 11 reacted with a single peptide of molecular weight 54.2 kD.麦长管蚜抗原由多种多肽组成,其中单克隆抗体EGA-4H11 与麦长管蚜抗原54.2kD的多肽结合.Finally, EGA - RBF - CSR was applied successfully to modeling quantitative structure - activity...