double-pipe造句

• Optimal design of gathering pipeline system of double - pipe mixing light oil in heavy oilfield
  稠油油田双管掺稀油集输系统的优化设计
• Breast wall effect of double - pipe protecting borehole wall blasting and its functional mechanism
  光面护壁爆破的护壁效果及作用机理探讨
• Based on the analysis of existing heat transfer models , design methods and experiences of the ground loop heat exchangers , a computer - aided design software is proposed . it can be used to design the horizontal loop , vertical loop and double - pipe heat exchangers
  在总结了国内外埋管换热器设计经验的基础上，进行了埋管换热器计算机辅助设计程序开发，该程序可用于水平埋管、 u型埋管以及套管式换热器的设计计算。