gaseous scintillator

例句：

1. 1. The gaseous cloud was visible from the observation deck.
   从观景台上可以看到那层弥漫的气体云。
2. 2.The gaseous atmosphere is essential for life on Earth.
   地球大气中的气体对生命至关重要。
3. 3.The scientist conducted experiments to study the properties of gaseous matter.
   这位科学家进行了实验，研究了气体物质的性质。