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含碳4.3%的铁碳二元系合金于1148℃发生共晶转变所形成的奥氏体和碳化物(或渗碳体)的共晶体。钢铁材料基本显微组织中的组成相之一。一般用符号Ld表示。
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conservational biological control
conservation and management fee for wild animal resources
conservation and management of animal resources
conservation and management of landscape heritage
conservation and management of plant resource
conservation and non-conservation
Conservation and Preservation of Textiles
Conservation and Restoration of Archive Materials
conservation and restoration of ceramics and pottery
conservation and restoration of paper collection
conservation and restoration technique of collection for oil painting
conservation and restoration technique of collection for stone collection
Conservation and Restoration Technologies of Chinese Cultural Relics
conservation and restoration technology of bone, horn and ivory collection
conservation and rstoration of ancient books
conservation and utilization of mineral resources
Conservation Biology
conservation biology
conservation biology of fishes
conservation difference scheme
conservation ecology
Conservation Environment of Cultural Relics
conservation equation
conservation equation of flow
conservation equations
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