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low temper | |||
first stage tempering | |||
low temperature temper | |||
low temperature tempering (【技】低温回火通常在150~250° C 之间进行,所得的组织为回火马氏体,可用于消除淬火所形成的内应力,降低脆性。); low tempering | |||
low-temperature tempering; low-tempering | |||
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lonneal |
低温回 火 : 4 phrases in 2 subjects |
Metallurgy | 3 |
Oil / petroleum | 1 |