Power factor power factor is the cosine of the Angle between the active power (kW) and apparent power (kVA) in a circuit.

功率因数功率因数是电路中有功功率(w)视在功率(VA)间夹角的余弦值。

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In an electric power system, the following parameters often need measuring: voltage, current, power factor, power, reactive power and apparent power.

电力系统中常需测量电压、电流、功率因数、有功功率、无功功率和视在功率等参数。

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The output power is very stable after the temperature cycling and vibration test. No apparent power decrease has been observed as the device working continuously for 500 h.

该光纤耦合模块连续工作500小时没有发现明显的功率衰减，并且输出功率经温度循环和振动冲击后具有较好的稳定性。

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The apparent power struggle between Mr Ahmadinejad and Mr Larijani comes ahead of presidential elections due in June.

BBC: Saeed Mortazavi (file photo)

The apparent power struggle between Mr Ahmadinejad and the parliamentary speaker comes ahead of presidential elections due in June.

BBC: Iran frees jailed ex-prosecutor Saeed Mortazavi

There seems to have been a sequence of technical faults (reportedly, a problematic transformer, false alarms, failed signals and an apparent power surge) at about the same time in a small area of the power grid serving London.

ECONOMIST: Power industry