以脱乙酰壳聚糖为载体,戊二醛为交联剂制备固定化碱性蛋白酶.Alkaline protease has been immobilized on chitosan with glutaraldehyde as crosslinking agent.目的研究戊二醛的新合成方法.Aim To study the synthetic method for the glutaric dialdehyde.用途: 用于生产戊二醛及高分子材料, 涂料,...
I have patients who are HIV-positive and asymptomatic.我的一些病人艾滋病病毒检测呈阳性,但却无任何体征。His estimate of half a million HIV positive cases was based on an extrapolation of the known incidence of the virus.他估计有50万个HIV阳性病例,这是根据已知的病毒...
"Oh, we'd love to!" cried Nancy, her face brightening.“哦,我们很乐意!”南希面露喜色,大声说道。"You're wrong, quite wrong!" Henry cried out, suddenly excited.“你错了,大错特错!”亨利突然激动地大喊道。He lay down on the floor and cried and cried.他躺在地...
Captain Cook safely navigated his ship without accident for 100 voyages.库克船长驾驶的船安全出航100次无事故。We can build up the speed gradually and safely.我们可以逐渐稳妥地提高速度。She nestled the eggs safely in the straw in Jim's basket.她把鸡蛋轻...