短語詞組短語speed frequency changer 變頻調(diào)速speed tap changer 高速抽頭切換開關speed -changer governing range 同步器調(diào)速的範圍speed d changer 變速器HIGH SPEED NET CHANGER 快速換網(wǎng)器high -speed tap changer 高速抽頭切換開關 返回 speed changer