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.
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。
2
The technology that can be carried out on the range is described to include such as singeing, desizing, scouring, wet batching-up, mercerizing and bleaching.