英语词汇“Rockwell number”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	Rockwell number
释义	Rockwell number Metall. a numerical expression of the hardness of a metal as determined by a test (Rockwell test) made by indenting a test piece with a Brale, or with a steel ball of specific diameter, under two successive loads and measuring the resulting permanent indentation. [1930-35, Amer.; named after Stanley P. Rockwell, 20th-century American metallurgist]
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