physical and chemical quality 基本例句 理化性质 Effect of vinegar pickling on physical and chemical characters of Lateolabrax japonicus were investigated.研究了醋渍处理对养殖鲈鱼理化性质的影响及变化规律。 Its physico chemical properties and spectrometry proved the compound was psoralidin.理化性质和波谱分析证明该化合物为补骨脂里定。