Critical mass
volume
British pronunciation/kɹˈɪtɪkəl mˈas/
American pronunciation/kɹˈɪɾɪkəl mˈæs/

"critical mass"的定义和意义

Critical mass
01

the minimum mass of fissionable material that can sustain a chain reaction

02

the minimum amount (of something) required to start or maintain a venture

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