sedimentary band

例句：

1. 1. The sedimentary band is a crucial part of the geological record.
   沉积带是地质记录中至关重要的一部分。
2. 2. The study of sedimentary bands can help us understand the history of the Earth's crust.
   研究沉积带可以帮助我们理解地球地壳的历史。
3. 3. The sedimentary band is formed by the accumulation of sediment over time.
   沉积带是由随着时间的推移沉积物积累形成的。