The UV radiation emitting device (24) breaks down ozone in the air stream, catalysed by the ozone catalysing device (26).

UV辐射发射装置（24）分解气流中的臭氧，臭 氧通过臭氧催化装置（26）催化。

And if that were not practical enough, others are looking at the role snowflakes have in catalysing the transformation of ozone into normal oxygen.

其它具有实际意义的研究包括雪花在臭氧变成普通氧气中所起的作用。