Firstly, both of their poems are artistically generalized in that words' span of time and space is expanded.

首先，二李词都具有高度的艺术概括性。这种概括性表现为拓开了词的时空跨度与容量。

youdao

The energy that comes into it from the sun is absorbed by air molecules and reradiated to space during the normal ups and downs in solar energy that occur over a roughly 11-year time span.

MSN: Earth's upper atmosphere cooling dramatically