| ประโยคภาษาจีน : 中文句子 | 
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|  ér而  jǐ几  nián qián年前  yòu又  fā发  xiàn yòng现用  tiě铁  dài tì代替  tóng铜  de的  xīn xíng新型  chāo dǎo tǐ超导体 | 
| Another new class of superconductors, based on iron instead of copper, was discovered a couple of years ago. |