双中英惯用短语:
  •   双级交叉连接结构   Dual staged cross connect architecture
  •   双级单作用压缩机   two-stage single-acting compressor
  •   双级压缩机   double-stage compressor
  •   双级旋涡泵   double-stage vortex pump
  •   双级氨制冷机组   double-stage ammonia refrigerating machine set
  •   双级氨－水吸收式制冷机   ammonia-water absorption refrigerating machine with two stage absorption process
  •   双级泵   two stage pump
  •   双级涡旋除尘器   double-step vortex dust remover
  •   双级涡轮喷气机   compound turbo jet
  •   双级涡轮机   double-stage turbine
  •   双级空气泵   double-stage air pump
  •   双级继电器   two-stage relay
  •   双级膨胀蒸汽机   double expansion engine
  •   双级节流制冷器   compound throttling refrigerator
  •   双级调节器   two-stage regulator
  •   双纬布   double weft cloth