difined midium

例句：

1. 1. The process of defining a midium is crucial for the development of a new drug.
   确定一个中间体的过程对于新药物的发展至关重要。
2. 2. The researchers have defined several midiums that can be used in the synthesis of this compound.
   研究人员已经确定了几种可用于合成这种化合物的中间体。
3. 3.The definition of a midium is often based on its chemical properties and how it interacts with other substances.
   中间体的定义为通常基于其化学性质以及它与其他物质的相互作用。