| 释义 | bab·cock test \ˈbabˌkäk-\ noun
 Usage: usually capitalized B
 Etymology: after Stephen M. Babcock died 1931 American agricultural chemist
 : a test for determining the butter value of milk and milk products by treating with acid and whirling by means of a centrifugal apparatus in a bottle with a long graduated neck, the fat being brought to the top and its amount being read off directly
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