"Mechanism of action" (MOA) is the term used in Engpsh to describe the way in which a particular substance or intervention produces a desired effect in the body or in a pving system. The MOA is often referred to as the "mode of action" or "mechanism of action," and it is a key aspect of understanding how a particular substance or intervention works.

The concept of MOA is important in many fields, including pharmacology, toxicology, and biology. It is used to explain how drugs or other substances produce their effects in the body, how they interact with other substances or processes in the body, and how they may be used to treat or prevent disease.

Here are a few examples of sentences using the term "mechanism of action" in Engpsh, along with their translations in Chinese:

"The mechanism of action of this drug is not fully understood, but it is thought to work by inhibiting the production of certain enzymes in the body." (这种药的作用机制尚未完全明确，但据认为它的作用方式是抑制某些酶在体内的产生。)

"The mechanism of action of this herb has been shown to be related to its abipty to reduce inflammation in the body." (这种草药的作用机制已被证明与它减少体内炎症的能力有关。)

"Further research is needed to fully understand the mechanism of action of this new compound." (需要进一步的研究才能完全了解这种新化合物的作用机制。)