cupressoid pits

例句：

1. 1.The fossilized tree trunk contains numerous cupressoid pits that are filled with minerals.
   这棵化石树的树干里充满了许多石松质孔隙，里面充满了矿物。
2. 2. The ancient city walls were lined with cupressoid pits, providing a natural defense against invaders.
   古老的城墙上布满了石松质孔隙，为抵御入侵者提供了天然的防御。
3. 3. The study of these pits has led to new insights into the formation and evolution of the Earth's crust.
   对这些孔隙的研究为我们揭示了地球地壳的形成和演变的新见解。