短語詞組短語density of weight fraction 量分數(shù)密度fuel -weight fraction 燃料重量比cumulative weight fraction 累積重量分數(shù)weight fraction crystallinity 重份結(jié)晶度propellant weight fraction [航]推進劑重量比molecular weight fraction 分子量組分low molecular weight fraction 低分子量級分high -molecular-weight fraction 高分子蛋白片段fraction weight 分數(shù)法碼 返回 weight fraction