求翻译：系统采用电源技术上的PWM波控制正弦脉宽逆变电路中的功率管互补导通产生SPWM逆变信号，该逆变信号通过LC低通滤波器后，便可得到大功率正弦信号。是什么意思？

System uses the power of technical control of PWM sine wave PWM inverter circuit in the power tubes produce complementary conduction signal SPWM inverter, the inverter signal through the LC low-pass filter, you can get high-power sinusoidal signal.

System used on the power supply technology PWM sine wave pulse width control inverter circuit in the complementarity of the generated power inverter SPWM signal, the inverter signals via LC low-pass filter, you can get high-power sine signal.

The system uses in the Chinese Journal of Power Sources in the PWM wave control sine pulse width inversion electric circuit power tube supplementary breakover to produce the SPWM inversion signal, this contravariant signal after the LC low pass filter, then may obtain the high efficiency sine signal

System using PWM control sine wave pulse-width on the power supply technology in inverter circuits of power tubes complementary on-SPWM inverter signal after the inverter signal through LC low-pass filter, you can get large power sinusoidal signals.

System adopt power technical PWM wave control sine pulse width against turn power of circuit into in charge of lead produce SPWM go against change signal while being coherent complemental, should be after being against turning into the signal and passing LC low coherent electric-wave filter, can rec