biological method

基本解释

In this paper, the methods of pectin extraction and purification from plant tissues, including chemical and biological methods, are introduced.
本文综述了从植物中提取果胶的各种方法，包括化学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.
根据测定原理，这些方法可被归类为化学方法、物理方法、物理化学方法和生物方法。
Molecular biological methods have been used for detection and identification of the pathogens in seeds.
分子生物学方法已用于十字花科蔬菜种传黑斑病菌种的检测和鉴定。

They cannot be understood, still less shaped, by physical and biological methods alone.
UNESCO: Post-Conflict and Post-Disaster Responses