I started with a KillAWatt P4400 power meter 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。
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。
If your application needs to measure the average power, the low price of the EPM series (E4418B and E4419B) power meter can provide accurate and repeatable measurement results.
如果您的应用需要测量平均功率，低价格的EPM系列(E4418B和E4419B)功率计能提供精确和可重复的测量结果。
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