Major, explosive volcanic eruptions send tons of gaseous sulfur compounds high into the atmosphere.

更重要的，火山爆发会将数吨高浓度的气态硫化合物释放入大气中。

youdao

Tools will not be used in an explosive or flammable atmosphere.

这类工具不能在易燃易爆环境中使用。

youdao

Group II: For use in other areas that may be endangered by a potentially explosive atmosphere.

第二组：用于其他领域，可能受到危害的一个潜在的爆炸性的气氛。

youdao

But because it takes several days for radioactive isotopes to be detectable in the atmosphere, observers in other countries won't initially know how North Korea made the explosive unless the country reveals it.

WSJ: Pyongyang Tests Nuclear Device