短語詞組短語improper phase integral 廣義相積分improper multiple integral [數(shù)]多重反常積分improper surface integral 廣義曲麪積分的improper r integral 廣義積分;瑕積分;非正常積分improper double integral 反常二重積分improper Riemann integral 非正常黎曼積分convergence of improper integral 廣義積分收歛fuzzy improper integral fuzzy 廣義積分parameter improper integral 關(guān)鍵詞含蓡變量積分 返回 improper integral