...FG Context – Free Coded Fuzzy Grammar 上下文无关模糊语法 CFCV Constant Frequency and Constant Voltage 稳定的频率和电压 CFD Computational Fluid Dynamics 计算流体力学（语言） ..
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本发明电路结构简单，输出的交流电的波形为纯正弦波，输出的电压和频率稳定，不会随输入电压和负载的变化而变化。
The circuit of the invention is simple, the wave output is pure sine wave, voltage and frequency output is stable, they do not change with input voltage and load.
除了处理电力转换交流，该复杂的HVDC系统还可以稳定撒丁岛的电压和频率。
In addition to handling the power exchange, this sophisticated HVDC system can stabilize voltages and frequencies on Sardinia.
理想的电力系统要求以频率和幅值稳定的正弦电压进行供电；
The ideal power system needs to be supplied with sine voltage whose frequency and amplitude are both stable.
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