伏特量交流电路中电压与电流的有效值以及电流与电压之间相位角的余弦之乘积。
The product of the effective values of the voltage and current with the cosine of the phase Angle between current and voltage in an alternating-current circuit.
同时将所有并网数据信息显示在页面上，甚至是相位角的变化也可以在页面上一幕了然。
At the same time the device shows all the data on the page, including the change of the phase.
然后详细的讨论了五杆机构在每一种分类情况下机构中存在双曲柄时机构的传动比及相位角的范围。
Then we conclude the five-bar's classification and the gear ratio and phase Angle in each classification to be full rotatability.
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