1. Main Products: roller chain (A or B), plate chain, motorcycle chain, the roller chain, the chain双节from various non-standard chain, the chain engine, heavy roller chain. 主营产品：滚子链条（A或B），板式链条，摩托车链条，大滚子链条，双节距链条，各种非标准链条，发动机链条，重滚子链条。
2. There are three types of chain store, regular chain, voluntary chain and franchise chain, and chain store has undertaken three periods-traditional chain, high speed development, and modern chain. 连锁经营先后出现了三种形式——正规连锁、自由连锁和特许连锁，经历了传统连锁、高速发展和现代连锁三个发展阶段。
3. It seemed to Boris that the Tsar liked uttering these words: he was pleased with the form in which he had expressed his feelings, but displeased at Boris overhearing them. 正如鲍里斯所感觉的那样，皇帝说出这些话很痛快：他很满意自己表达思想的方式，但是却不满意鲍里斯听到他的话。
4. Our products has single jack chain, double jack chain, machine chain, sash chain, twist chan, ball chain and so on. 我们的产品有单杰克链，双杰克链，机械链，窗框链，扭曲，陈球链等。
5. Problem chain, Expand a chain, Lead longer chain, Comprehensive chain, Deeply turn a chain, The frame diagram learn. ~~^o^~~! 请教数学系的朋友几个专有名词，问题链，推广链、引申链、综合链、深化链，框图学英语分别是怎么说的？
