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单词 sclerometer
释义 sclerometer
 —sclerometric /sklear'euh me"trik, skler'-/,  adj.  
 /skli rom"i teuhr/,  n.  
 any instrument for determining with precision the degree of hardness of a substance, esp. a mineral, as by measuring the pressure necessary to pierce or scratch it.
 [1875-80; SCLERO- + -METER]
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更新时间:2024/12/23 14:35:10