The important fators which affect culture conditions of ? Halobacterium halobium ? B were screened by Plackett? Burman design. 利用Plackett-Burman设计筛选出影响盐生盐杆菌( Halobacteriumhalobium )B培养条件的重要因素,然后利用正交试验设计对这些重要因素加以优化.
However, many customers found the smell of this product distinctly off-putting.然而，很多顾客觉得该产品有一股异味，非常难闻。I distinctly heard the loudspeaker calling passengers for the Turin-Amsterdam flight.我清楚地听到扩音器里在请都灵至阿姆斯特丹航班的旅客登机。We we...
By the time he's twenty he'll know everyone worth knowing in Washington.到20岁时，他就会认识华盛顿所有值得认识的人。Take a hundred and twenty values and calculate the mean.取120个值计算平均数。Southbound traffic tailed back for twenty miles...