| ประโยคภาษาจีน : 中文句子 | 
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|  běn wén本文  rèn wéi认为  shān xī山西  yáng chéng yóu阳城由  liú硫  tiě kuàng铁矿  liàn炼  liú硫  de的  jì xiàng迹象  zài在  nán běi cháo南北朝  shí chū时出  xiàn现  ér而  fā zhǎn发展  yú táng于唐 | 
| The sulfur produced from pyrites at first appeared in the Northern and Sourhern Dynasties, and then was developed in the Tang Dynasty. |