当施加到阳极的交流电压上升，在正方向上，电流流经可控硅的栅极-阴极部分。
When the AC voltage applied to the anode rises in the positive direction, current flows through the gate-cathode section of the SCR.
当施加到阳极的交流电压上升，在正方向上，电流流经可控硅的栅极-阴极部分。
When the AC voltage applied to the anode rises in the positive direction, current flows through the gate-cathode section of the SCR.
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