两个单元间的干扰(凸角)会在该频率周围产生功率响应急降，并由于方向性的差异而产生一个峰值。
Interference (or 'lobing') between the two units causes a dip in power response around this frequency, with a peak above it due to their differences in directivity.
它在除了功效、耐久性和可靠度之外，最重要的要求是电池每重量单元能产生多少功率。
Besides efficiency, durability and reliability, the most important requirement for solar cells was how much power they could generate per unit of weight.
但现在我要产生的，功率是力和速度，间的标量积。
But now the power that I have to generate is the dot product between the force and the velocity.
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