one trillionth (10^-12) of a second; one thousandth of a nanosecond
造句
用作名詞(n.)
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. 短暫吸收基于分子吸收特異波長的原理，這使得研究者研究發生反應非常快低于皮秒的事件。