短語(yǔ)詞組短語(yǔ)expansion pressure ratio [力]膨脹壓力比expansion device ratio 膨脹比nozzle expansion area ratio 噴嘴擴(kuò)散面積比expansion area ratio 擴(kuò)散段截面積比outline expansion length ratio 輪廓展開(kāi)長(zhǎng)度比bandwidth expansion ratio 帶寬擴(kuò)展率;頻帶展寬比;[電子]頻帶擴(kuò)展比;帶寬擴(kuò)展比overall expansion ratio 總膨脹比combustion expansion ratio 燃燒膨脹比;燃燒膨脹比英語(yǔ);翻譯steam expansion ratio 蒸汽膨脹比 返回 expansion ratio