有功

• Ask him whether he has time to go to the movies
  问问他是否有功夫去看电影。
• 8 . installation with inlay 9 . the hole of inlay : 200mm95mm
  独有功能与特性：
• Detect non - linear load active power in circuit
  非线性负载有功功率检测原理
• Intelligent tri - phase ac active reactive power instrument
  智能三相交流有功无功功率仪表
• Note 1 single display the three phase total active power
  注1 ：单屏显示三相总有功功率。
• Intelligent tri - phase ac active , reactive power instrument
  智能三相交流有功无功功率仪表
• Ted : no , not today . i have homework
  泰德：不，今天不出去。我有功课。
• Rated power load switch - off current 1250
  额定有功负荷开断电流a 1250
• A new method of measure for work power of three electric circuit
  三相电路有功功率测量新方法