短語詞組短語loop voltage -drop 回路壓降voltage -drop of power 電源壓降secondary loop voltage -drop 二次回路壓降l voltage -drop limit 電壓跌落極限dc forward -voltage-drop test 直流正向壓降測試releasing voltage -drop of stored energy 儲(chǔ)能釋放壓降 返回 voltage drop