短語詞組短語slitting bluff -body 開縫鈍體a bluff -body 鈍體corrugated bluff -body 波紋形擴流錐bluff -body flow 繞鈍狀體流slit bluff -body 開縫鈍體燃燒器asymmetry bluff -body 非對稱鈍體 返回 bluff body