noncyclic crown ether

例句：

1. 1. The use ofnoncyclic crown ether in the study of biological systems has been shown to be highly effective.
   在研究生物系统时，使用非环状冠醚的效果被证明是非常有效的。
2. 2. This new method for extracting noncyclic crown ether from plant materials is expected to significantly improve the efficiency of extraction.
   从植物材料中提取非环状冠醚的新方法预计将大大提高提取效率。
3. 3. The researchers found that the noncyclic crown ether could effectively prevent the growth of bacteria onthe surface of the material.
   研究人员发现非环状冠醚可以有效地阻止细菌在材料表面的生长。