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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 | |||
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低 温回火 : 4 phrases in 2 subjects |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
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