shape isomer

例句：

1. 1. The compound has a unique shape isomer that makes it difficult to purify.
   这种化合物有一个独特的形状异构体，这使得它很难纯化。
2. 2.Researchers are trying to identify the shape isomers of the new drug.
   研究人员正在尝试识别这种新药的形状异构体。
3. 3.The shape isomers of the compound have been found to be responsible for its unique properties.
   这种化合物的形状异构体被发现是其独特性质的原因。