siliceous soil硅质土壤
siliceous rocks硅质岩类;硅质岩
Siliceous Schist硅质片岩
siliceous spicules硅质骨针
Siliceous lime钙质石灰;含硅石灰
siliceous aggregate硅质骨料
siliceous cyst硅质胞
siliceous impurity硅杂质
ADJ（形容词） of, relating to, or containing abundant silica 富含硅的
siliceous deposits