Describing a process 描述过程

• ◆This diagram illustrates the process of paper-making./This diagram shows how paper is made. 这个图说明了造纸的过程。
• ◆ First / First of all, logs are delivered to a paper mill, where the bark is removed and the wood is cut into small chips. 首先，原木被运送到造纸厂，在那里去掉树皮，然后被切成木片。
• ◆ Next / Second, the wood chips are pulped, either using chemicals or in a pulping machine. 接下来，用化学品或磨浆机把木片化成浆。
• ◆Pulping breaks down the internal structure of the wood and enables / allows the natural oils to be removed. 制浆过程使木材的内部结构分解，从而去除木材里的天然油。
• ◆ Once / After the wood has been pulped, the pulp is bleached in order to remove impurities. /…is bleached so that impurities can be removed. 木材制成浆后，将其漂白以去除杂质。
• ◆ The next stage is to feed the pulp into the paper machine, where it is mixed with water and then poured onto a wire conveyor belt. 下一步便是将纸浆送入制纸机，与水混合后再倒入金属传送带。
• ◆ As the pulp travels along the conveyor belt, the water drains away. This causes the solid material to sink to the bottom, forming a layer of paper. 当纸浆沿传送带传送时，水分蒸发，使得固体物质沉到底部，形成一层纸。
• ◆ At this point the new paper is still wet, so it is passed between large heated rollers, which press out the remaining water and simultaneously dry the paper/…dry the paper at the same time. 这时，新出的纸仍然是湿的，故让其经过几个巨大的热滚筒，挤压脱水并同时烘干。
• ◆ The final stage is to wind the paper onto large rolls./ Finally, the paper is wound onto large rolls. 最后一步是将纸卷在巨大的卷轴上。