短語詞組短語expansion pressure ratio [力]膨脹壓力比expansion device ratio 膨脹比nozzle expansion area ratio 噴嘴擴散麪積比expansion area ratio 擴散段截麪積比outline expansion length ratio 輪廓展開長度比bandwidth expansion ratio 帶寬擴展率;頻帶展寬比;[電子]頻帶擴展比;帶寬擴展比overall expansion ratio 縂膨脹比combustion expansion ratio 燃燒膨脹比;燃燒膨脹比英語;繙譯steam expansion ratio 蒸汽膨脹比 返回 expansion ratio