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铅浴淬火
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铅浴淬火
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淬火
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lead bath quenching
铅浴淬火
将钢件加热到临界温度以上30~50℃完全奥氏体化后,保温一定时间,然后在熔融铅液介质中快速冷却,并保温一段时间,最后在空气中冷却的淬火工艺。
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Rood-Sastry system
Rood-Sastry type
roof
roof and floor
roof and floor of wood frame construction
roof-angle prism
roof fall
roof garden
roof greening
roofing beam
roofing engineering
roof iris
Roofloy
roof of coal seam
roof planting
roof prism
roof-ridge decorative animal sculptures
roof strata collapse of working face
Roof Tile With Monster-mask
Rooftop
roof top reflector
roof truss
roof turf
Rookie play prize
Rook number
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