| ประโยคภาษาจีน : 中文句子 | 
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|  duì对  zǐ tóng紫铜  guǎn管  yǔ与  dī低  hé jīn合金  gāng guǎn钢管  de的  hàn jiē焊接  tè diǎn特点  jìn xíng进行  le了  fēn xī分析  tōng guò通过  gōng yì工艺  shì yàn试验  yán jiū研究  zhǎo chū找出  le了  jiào较  hé lǐ合理  de的  hàn jiē焊接  gōng yì工艺  fāng fǎ方法 | 
| The characteristics of the weld between copper tubes and low alloy tubes were analysed, and reasonable weld technology methods were found out through some experimental investigations. |