If you've ever heard of a power hour, you are already one step ahead.
如果你曾经听说过动力时间，你就已经领先一步。
Power was back on after about an hour.
电力在约一小时后恢复。
They underestimate the power of a four-hour practice.
他们都低估了四小时练习的运动强度。
The following is a full range of electronic watt-hour meter and power quality measurement equipment.
下面是全系列的电子电能表和电力质量测量设备。
The following is a full range of electronic watt-hour meter and power quality measurement equipment.
下面是全系列的电子电能表和电力质量测量设备。
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