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[单选题]
布氏硬度(HB)与洛氏硬度(HRC)之间的近似关系是()
A.1HB=10HRC
B.1HB=15HRC
C.1HB=20HRC
D.1HB=25HRC
提问人:网友zhangwe2019
发布时间:2022-01-06
A.1HB=10HRC
B.1HB=15HRC
C.1HB=20HRC
D.1HB=25HRC
布氏硬度(HB)和洛氏硬度(HRC)之间的近似关系是()
A.HB=10HRC
B.HB=15HRC
C.HB=20HRC
D.HB=25HRC
布氏硬度(HB)和洛氏硬度(HRC)之间的近似差分值是()
A.HB=10HRC
B.HB=15HRC
C.HB=20HRC
D.HB=25HRC
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