principal function

基本解释

This lesson chiefly describes principal function and writing requirement of a description, and its abstract and claims.
这一讲着重介绍说明书、权利要求书与摘要的作用和撰写要求。
A mechanism may be defined in a similar manner, but the term mechanism is usually applied to a system where the principal function is to transmit motion.
一种机构也可以以类似的方式定义，但长期的机构通常是适用于一个系统的主要职能是传递运动。
The principal function of phagocytes is to defend against invading microorganisms by ingesting and destroying them, thus contributing to cellular inflammatory responses.
吞噬细胞的主要功能是将入侵微生物吞噬并加以摧毁，推动细胞的炎症反应。

They're small molecules that - whose principal function in the body is to carry signals from one cell in the nervous system to another.
它们都是小分子,在体内主要功能是在,神经系统内将信号,从一个细胞传导到另一个细胞
耶鲁公开课 - 生物医学工程探索课程节选