| environ. |
paper industry Industrial production of paper: pulp is produced by mechanically or chemically processing wood or other vegetative materials to extract usable cellulosic fibers as an aqueous slurry. The pulp slurry may be used directly in paper making or it may be shipped elsewhere for processing into paper products. The fundamental industrial operations are divided into two major categories: pulp mill and paper mill. The pulp mill operation includes wood preparation, pulping, deinking, pulp washing, screening and thickening, and bleaching. The paper mill operations include stock preparation, paper machine operation and finishing (工业生产的纸：浆是由机械或化学处理木材或其它植物原料提取得到，使用纤维素纤维作为浆。可以直接应用于浆纸制作或可进行纸产品加工的地方。作为基础性工业，它分为两大类：纸浆厂和造纸厂。在纸浆厂的操作包括木头制备、蒸煮、废纸、浆料洗涤、筛选和增厚、漂白。造纸厂的业务包括制备、造纸设备的操作和管理。) |
