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化学热处理
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化学热处理
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化学热处理
释
thermo-chemical treatment
化学热处理
把金属材料或工件放在适当的活性介质中加热、保持,使一种或几种化学元素渗入其表层,以改变其化学成分、组织和性能的热处理工艺。
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preschool education policy
preschool education theory in humanism
preschool education theory of behaviourism
preschool education theory of constructivism
preschool education theory of postmodernism
preschoolers' sport
Preschool in Three Cultures
preschool period
pre-school physical education
Preschool Pictorial
prescribe
prescribed
prescribed boundary
prescribed burning
prescribed curvature
prescribed mean curvature
prescribing cascade
prescription
prescription fertilization
prescription in criminal law
prescription of labor dispute arbitration
prescription of prosecution
prescription of TUM
Prescriptions Collected by the Public Pharmacy
Prescriptions for Universal Relief
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