新废料——产品生产中含有金属余渣的废料。
New scarp — waste composed of the residual materials generated during production.
络合剂：能与金属离子或含有金属离子的化合物结合而形成络合物的物质。
Complexing agent: can with metal ions or containing metal ions compounds formed the material with complex.
非金属材料是指如木头，塑料，橡胶，环氧树脂，陶瓷及金刚石等那些不含有金属基材的材料。
Nonmetallic materials are those materials such as woods, plastics, rubbers, epoxy resins, ceramics and diamonds that do not have a metallic base.
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