ACN

例句：

1. 1. ACN is a type of carbon nanotubes.
   ACN是一种碳纳米管。
2. 2. ACN is used in the production of electronic devices.
   ACN用于生产电子设备。
3. 3. ACN is a promising material for energy storage.
   ACN是一种有前途的能量存储材料。