基纳说，在理想环境下，沙门氏菌每20分钟复制。
"Salmonella doubles every 20 minutes under ideal conditions," Keener said.
五分钟后，等离子火炬杀死了皮氏培养皿中99%的细菌，而十分钟后，它杀死了老鼠伤口上90%的细菌。
After five minutes, the plasma torch killed 99 percent of bacteria grown in a Petri dish, and after ten minutes, it killed 90 percent of bacteria present in the wounds of a rats.
10点钟，信息介绍课在劳氏纪念图书馆准时开始。
The information session started promptly at 10am at the Low Memorial Library.
10点钟，信息介绍课在劳氏纪念图书馆准时开始。
The information session started promptly at 10am at the Low Memorial Library.
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