短語詞組短語small conduction angle 小導(dǎo)通角critical conduction angle 臨界導(dǎo)通角subsynchronous resonance conduction angle 次同步諧振導(dǎo)通角optimal advanced conduction angle control 最優(yōu)超前導(dǎo)通控制SCR 's conduction angle 可控矽導(dǎo)電角 返回 conduction angle