It has been said that Chinese papermakers were among the prisoners captured in a battle fought near Samarqand between the Chineseand the Muslims in 751, and the technique of papermaking - in which cellulosepulp extracted from any of several plants is first suspended in water, caught on a fine screen, and then dried into flexible sheets - slowly spread westward.
词汇讲解：
cellulose /'seljʊləʊz/ n. 纤维素
pulp /pʌlp/ n. 果肉;纸浆
extract /ɪk'strækt/ vt. 取出，拔出;压出, 榨出(汁液等);选录，摘录
suspend /sə'spend/ vt. 悬挂或吊起某物;使(某物)悬浮;使(某事物)暂停
screen n. (筛煤﹑ 砾石等的)筛子
flexible /'flɛksəbl/ adj. 易弯曲的，柔韧的， 有弹性的
结构划分：
It has been said that Chinese papermakers were among the prisoners (capturedin a battle)(fought near Samarqand)(between the Chinese and the Muslims in 751), and the technique of papermaking - (in which cellulose pulp extracted from any of several plants is first suspended in water, caught on a fine screen, and then dried into flexible sheets) - slowly spread westward.
深度分析：
这个句子的主干是：
It has been said that + 从句
从句的主干是：
Chinese papermakers were among the prisoners and the technique of papermaking slowly spread westward
修饰一：(captured in a battle)，非谓语动词，相当于形容词，修饰the prisoners
中文：在战争中被俘
修饰二：(fought near Samarqand)，非谓语动词，相当于形容词，修饰battle
中文：在撒马尔罕附近
修饰三：(between the Chinese and the Muslims in 751)，介词短语
中文：在751年，在中国和穆斯林之间
修饰四：(in which cellulose pulp extracted from any of severalplants is first suspended in water, caught on a fine screen, and then dried into flexible sheets)，从句，修饰the technique of papermaking
注意：从句里面还有一个非谓语动词修饰cellulosepulp
cellulose pulp (extracted from any ofseveral plants) is first suspended in water
中文：首先从几颗植物中提取纤维素纸浆悬浮在水中，在精致的筛子上过滤，然后烘干成有韧性的纸张
参考翻译：
据说在751年，在中国和穆斯林之间，在撒马尔罕附近的一场战役中，中国的造纸匠被虏成为囚犯，这样造纸术(首先从几颗植物中提取纤维素纸浆悬浮在水中，在精致的筛子上过滤，然后烘干成有韧性的纸张)才缓慢向西方传播。
