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местная закалкаacentos
automóv. selective quenching
equip. localized hardening
metal. local hardening; spot hardening; decremental hardening; differential hardening; selective hardening; differential quenching; local quenching; localized quench hardening
petr. point hardening
местная закалка: 5 a las frases, 3 temas
Metalurgia2
Procesamiento de madera2
Tecnología1