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cone indentation test; cone penetration test; cone thrust test; Rockwell hardness test | |||
Rockwell hardness test | |||
ball test for hardness | |||
Rockwell test |
洛氏 硬 度试验 : 12 phrases in 4 subjects |
Construction | 1 |
Metallurgy | 6 |
Oil / petroleum | 1 |
Technology | 4 |