Partir dos conceitos de modulação por largura de pulso senoidal (SPWM) foi implementado um modelo da logica de chaveamento，做流转器 trifasico de 多 niveis e um 子系统段作为 medições das grandezas (范、 真空断路器等）。
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002257s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 17709 [ RunTime:0.001683s ]
