二恶英是冶炼、纸浆氯漂白和一些除草剂和杀虫剂制造等各种生产过程的有害副产品。
Dioxins are unwanted by products of a wide range of manufacturing processes including smelting, chlorine bleaching of paper pulp and the manufacturing of some herbicides and pesticides.
组织可以自由开发其他各种，用来展示他们各种过程、产品和质量管理体系的符合性所必需的记录。
Organizations are free to develop other records that may be needed to demonstrate conformity of their processes, products and quality management system.
主要列举了从铅冶炼和锌湿法冶炼过程的副产品中回收铟的常用方法，并分析了各种方法的优缺点。
The common methods of reclaiming indium from the byproducts of lead metallurgy and zinc hydrometallurgy are enumerated, and analyzed every method's virtue and shortcoming.
应用推荐