短語(yǔ)詞組短語(yǔ)secondary alternating voltage 二次交流電壓secondary circuit voltage drop 二次回路壓降secondary y voltage 副電壓Secondary side voltage 閥側(cè)secondary loop voltage drop 二次回路壓降secondary highest voltage 二次最高電壓secondary available voltage 次級(jí)有效高壓secondary output voltage 次級(jí)輸入電壓secondary harmonic voltage 二次諧波電壓 返回 secondary voltage