ethyl ether-boron trifluoride complex

例句：

1. 1. The compound is used in the synthesis of organic compounds.
   这种化合物用于有机化合物的合成。
2. 2. The ethane molecule has a unique structure that makes it an important chemical.
   乙烷分子具有独特的结构，使其成为重要的化学物质。
3. 3.The ethane molecule is a key component in many industrial processes.
   乙烷分子是许多工业过程中的关键成分。