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。
2
The design can be widely used in wireless automatic charge and meter transcription system of kilowatt-hour meter, water meter and gas meter.
该设计可广泛用于电度表、水表、燃气的无线自动收费和抄表系统中。
3
The payment in advance pattern using IC card is more convenient than manual kilowatt hour meter reading, but it is not suited to real time pricing mode.