hardness number

基本解釋

Grain number and hardness of Ta disk changed from center to edge;
晶粒數(shù)和硬度沿鉭餅中心到邊沿變化；
Because the hardness number obtained depends on the applied load, Knoop test restless should always cite the load used.
因為硬度值的獲得和載荷十分密切，所以不太精確的努氏試驗總是采用用過的載荷值。
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The hardness number is then read on a dial on the machine. The Rockwell test is very quick, and is suitable FOR mass inspection of parts.
然后在硬度計的刻度盤上讀出硬度數(shù)值。洛氏硬度計測試非?？旖?，并且適用于部件的成批檢驗。