即使是15分钟的猝发光（其它地方是持续的黑暗环境）也可以使动物重新设定生理节奏。
Even a fifteen-minute burst of light in otherwise sustained darkness can reset an animal's circadian rhythm.
在一台有很多数据库的繁忙的服务器上，由于每隔15分钟就要检查很多的视图，您的环境会无法容忍仅仅一个视图就花去这么多时间。
On a busy server with many databases to check and many views to update every 15 minutes, your environment cannot afford to spend this kind of time on a single view.
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.
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