变频

• Variable - frequency speed control and its application example
  变频调速及应用实例
• Driven with variable frequency , less the energy consumption
  变频调速，经济节能。
• Application of frequency control technology in mines
  变频调速在空气压缩机中的应用
• Micro - computer controlled vvvf water - supplying equipment
  微机控制变频调速给水设备
• Speed regulating of gear wheel rigs by frequency conversion
  牙轮钻机变频调速
• 3 . frequency conversing timing , auto high - position halt
  3变频调速高位停车。
• Application of frequency control in air compressor
  变频控制在空压机中的应用
• The frequency conversion regulation of the condensate pump
  凝结水泵变频调节
• 4 . the application of frequency conversion technology
  四变频技术的应用。
• 1 . frequency conversing timing at main machine entry
  1主机进口变频调速。