【英语时差8,16】造纸的化工过程（上）

Most modern paper is made from trees, but that hasn’t always been the case. In fact, paper can be made from any form of cellulose that can be broken down into fibers¹. Because cellulose is what gives all plants their structure, most plants can be used to make paper. Since the Chinese produced the first true paper around the year 100 A.D., people have made paper with rags, old fishing nets, grass, tree bark, and a variety of other plants. To begin the process, the cellulose has to be boiled, beaten, or shredded² into tiny fibers. The paper pulp³, made up of those tiny fibers is then spread into sheets, pressed, and dried to make paper. To make strong paper, you need long fibers which is why the pulp has to be beaten instead of chopped. Beating the cellulose separates the fibers from each other, while leaving individual fibers intact.

1 fibers   

光纤( fiber的名词复数 )； （织物的）质地； 纤维，纤维物质

参考例句：

• Thesolution of collagen-PVA was wet spined with the sodium sulfate as coagulant and collagen-PVA composite fibers were prepared. 在此基础上，以硫酸钠为凝固剂，对胶原-PVA共混溶液进行湿法纺丝，制备了胶原-PVA复合纤维。
• Sympathetic fibers are distributed to all regions of the heart. 交感神经纤维分布于心脏的所有部分。

2 shredded   

shred的过去式和过去分词

参考例句：

• Serve the fish on a bed of shredded lettuce. 先铺一层碎生菜叶，再把鱼放上，就可以上桌了。
• I think Mapo beancurd and shredded meat in chilli sauce are quite special. 我觉得麻婆豆腐和鱼香肉丝味道不错。 来自《简明英汉词典》

3 pulp   

n.果肉，纸浆；v.化成纸浆，除去...果肉，制成纸浆

参考例句：

• The pulp of this watermelon is too spongy.这西瓜瓤儿太肉了。
• The company manufactures pulp and paper products.这个公司制造纸浆和纸产品。