Rockwell hardness number

常見例句

雙語例句

• 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(jì)的刻度盤上讀出硬度數(shù)值。洛氏硬度計(jì)測試非?？旖?，并且適用于部件的成批檢驗(yàn)。
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