英语词汇“diameter group”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	diameter group
释义	diameter group diameter group [dī′am·əd·ər ‚grüp] (mechanical engineering) A dimensionless group, used in the study of flow machines such as turbines and pumps, equal to the fourth root of pressure number 2 divided by the square root of the delivery number.
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