不足处是反向电渗析产生的是直流电，而世界上主要使用交流电。
The disadvantage is that reverse electrodialysis produces direct current, whereas the world runs mostly on alternating current.
公司的交流反向驱动器提供最高的精确度，通过LMMI控制，维持速度，张力和伸长量。
Litzler Vector ac inverter drives provide the highest level of accuracy available and are controlled by LMMI to maintain speed, tension and stretch.
铝电解电容器是有极性的，不应加反向电压或交流电压。
Aluminum electrolytic capacitors are polar. Make sure that no reverse voltage or ac voltage is applied to the capacitors.
在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。
Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.
在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。
Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.
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