caulocystidium

例句：

1. 1. The cystidium was found to be a rare mineral.
   这种硅藻土被发现是一种罕见的矿物。
2. 2. The discovery of this new species has sparked a renewed interest in the study of cystidium.
   这种新物种的发现激发了人们重新对硅藻土研究的兴趣。
3. 3. The cystidium is used in various industries for its unique properties.
   硅藻土因其独特的性质被用于各种行业。