| 释义 |
power
乘幂;功率
1. In mathematics, the number times that a quantity is multiplied by itself.
在数学中,一个量自身相乘的次数。
2. In electronics, the product of an instanta neous voltage and the correspondent instantaneous current. In AC circuits, the power consumed in a circuit will be zero if the voltages and currents are exactly 90degrees out of phase with each other.
在电子学［技术］中,瞬时电压及其相应的瞬时电流的乘积。在交流电路中,若电压、 电流相位正好相差90°,则电路上消耗的功率为零。 |