1. Transient absorption is based on the idea that molecules absorb light at specific waelengths, and it allows researchers to study eents that happen in less than a picosecond.
   瞬間汲取體系結構原子汲取特異激發光譜的基本原理，這能讓調查者調查發生作用十分快底于皮秒的事情。