交流电路中的有用功率还取决于该电路中的电流和电压。
The useful power in ac circuit also depends on the current and voltage in the circuit.
计算表达式基本反映了离心磨矿机有用功率的总体情况，说明其表达式合理可行。
The counting expression reflects the general conditions of the useful power of the centrifugal mill, and it proves the feasibility and reason of the expression.
对于这些应用，设计人员集中于电路能够连转换最小可用电压电平到有用功率。
For these applications, designers focus on circuits able to convert even the smallest available voltage levels to useful power.
应用推荐