有功

• Intelligent tri - phase ac active reactive electric energy instrument
  智能三相交流有功无功电能仪表
• Intelligent tri - phase ac active reactive electrical energy instrument
  智能三相交流有功无功电能表
• Ac tri - phase active power meter note1
  交流三相有功功率表注1
• Particular requirements for multi - users static watt - hour meters
  多用户静止式交流有功电能表.特殊要求
• They ' re still functional . - careful
  它们仍然有功能.小心
• Carolyn is a recipient of the citation for meritorious service
  卡洛琳是位扶轮基金会有功服务奖受奖人。
• Factors affecting ball mill s active power and grinding efficiency
  球磨机有功功率和磨矿效率影响因素研究
• The power factor ( pf ) is the ratio of average power to apparent power
  功率因数是有功功率与视在功率之比。
• Alternating current static watt - hour meters for active energy classes 1 and 2
  1级和2级静止式交流有功电能表
• " is this handle functional ? " " no , it is only for decoration .
  "这个手把有功用吗？ " "没有，它只是装饰用的。