crossflametube

例句：

1. 1. The crossfire tube was used as a communication device during the war.
   在战争中，crossfire tube被用作通信设备。
2. 2. The crossfire tube is a rare and valuable artifact in archaeology.
   crossfire tube是考古学中罕见的珍贵文物。
3. 3. The crossfire tube was discovered by accident during an archaeological excavation.
   crossfire tube是在一次考古挖掘中偶然发现的。