短語(yǔ)詞組短語(yǔ)lead -angle weaken-magnetization control 移相弱磁控制lead ascending angle 螺旋線(xiàn)升角base lead angle 基圓導(dǎo)程角down -lead angle 引下角Current lead angle 電流超前角spiral lead angle 螺旋升角 返回 lead angle