硅质

The diatom is a unicellular algae with a silicious shell.
这种硅藻是一种具有硅质壳体的单细胞藻类。
The silica gel is a desiccant with a highly porous, silicious structure.
硅胶是一种多孔性、硅质结构的干燥剂。
The fossils in this rock are preserved in a silicious matrix.
这块岩石中的化石被保存在一种硅质基质中。
Siliceous sand is used in the production of glass.
制造玻璃会用到硅质砂。
The spicules of sponges are composed of siliceous material.
海绵的刺丝囊是由硅质材料构成的。
Siliceous rocks like granite and sandstone are common in many parts of the world.
在世界各地许多地方都常见到花岗岩和砂岩这类硅质岩石。
The deposits of opal are often formed from hydrated siliceous precipitates.
通常，蛋白石矿床是由水合硅质沉淀物形成的。
Siliceous sinter forms around hot springs as a result of silica precipitation.
由于硅质沉淀，硅质 sinters（一种沉积物）会在温泉周围形成。
Diatoms produce large amounts of organic matter and siliceous skeletons that accumulate in sediments.
藻类产生大量有机物质和积累在沉积物中的硅质骨架。
Siliceous microfossils, such as those from radiolarians, can be found in ancient oceanic sedimentary rocks.
可以在古老的海洋沉积岩中找到放射虫等硅质微化石。