I started with a KillAWatt P4400 powermeter and the U.S. Department of Energy average of 11 cents per kilowatt hour of electricity. After that, I estimated my own household's average device usage.
我以一只KillWatt P 4400型电表和美国能源部每千瓦平均11美分的价格开始，之后，我评估了我家的使用的所有小设计的平均使用量。
2
Index of average stock price is energy meter of economic power.
指数(平均股票价格)是经济力的活力仪表。
3
If your application needs to measure the averagepower, the low price of the EPM series (E4418B and E4419B) power meter can provide accurate and repeatable measurement results.