time decay的用法和樣例：
例句
- Tools for fitting with up to four discrete exponentials or decay times distribution analysis are available.
提供超過四個離散指數配套工具或者支持衰減時間分布狀態分析。 - The time constant of the fast attenuation is equal to the carrier energy relaxation time when the incident photon energy is larger than the band-gap of the monocrystalline silicon.
當入射光子能量大于單晶硅的直接帶隙時，快速衰減時間常數可以與載流子能量弛豫時間相當。
