常見例句雙語例句In this paper, the methods of pectin extraction and purification from plant tissues, including chemical and biological methods, are introduced.本文綜述了從植物中提取果膠的各種方法，包括化學(xué)提取法和生物提取法。Based on their principles, these methods can be classified into chemical methods, physical methods, physicochemical methods, and biological methods.根據(jù)測定原理，這些方法可被歸類爲(wèi)化學(xué)方法、物理方法、物理化學(xué)方法和生物方法。Molecular biological methods have been used for detection and identification of the pathogens in seeds.分子生物學(xué)方法已用於十字花科蔬菜種傳黑斑病菌種的檢測和鋻定。權(quán)威例句They cannot be understood, still less shaped, by physical and biological methods alone.UNESCO: Post-Conflict and Post-Disaster Responses 返回 biological method