liquid acetylene

例句：

1. 1. The liquid acetylene is a powerful solvent for many chemicals.
   液氦是一种许多化学物质的强力溶剂。
2. 2. The liquid acetylene was used in the early days of rocket technology.
   液氦在火箭技术早期被使用。
3. 3. The liquid acetylene was found to have unique properties that could be useful in various applications.
   液氦被发现具有独特的性质，可以在各种应用中发挥作用。