Five minutes after that, we placed either bacon or bread on the surface for 5, 30 or 60 seconds, and then measured the number of bacteria transferred to the food.

五分钟后，我们将培根或面包放在表面5秒、30秒或60秒，然后检测转移到食物上的细菌数量。

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The team measured a number of areas in the Milky Way where stars are forming.

VOA: special.2009.01.20

London does rank as Europe's fourth-rainiest city as measured by number of days of rain, with 226.

FORBES: Europe's Wildest Weather Cities

And sometimes what is measured (number of children enrolled in school) is not what counts (the number who learn anything).

ECONOMIST: Global poverty

Because it takes several years for the companies in which venture capitalists invest to exit, the number of exits is best measured against the number of companies backed several years earlier.

FORBES: The Health of the Venture Capital Industry