crown ether

例句：

1. 1. Crown ether is a widely usedchemical compound in the field of chemistry.
   冠醚是一种在化学领域广泛使用的化合物。
2. 2. The researchers discovered that crown ethercould selectively bind to certain proteins.
   研究人员发现，冠醚可以特异性地结合某些蛋白质。
3. 3. In the study, crownether was found to have antibacterial properties.
   在该研究中，冠醚被发现具有抗菌性质。