英语词汇“hardness 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	hardness number
释义	DictionarySeenumber hardness number hardness number [′härd·nəs ‚nəm·bər] (engineering) A number representing the relative hardness of a mineral, metal, or other material as determined by any of more than 30 different hardness tests. hardness number hardness number A number on a calibrated scale indicating the relative hardness as determined by a particular system of testing, e.g., Knoop, Mohs, Rockwell, Vickers hardness tests. A steel ball or diamond point is applied with a known variable load for a determined period of time to produce an indent whose depth or diameter can be measured. See also: number LegalSeeNumber
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