folded-chain crystal

例句：

1. 1. The foldedchain crystals were found in thesedimentary rock.
   在沉积岩中发现了折叠链状晶体。
2. 2. The folded chain crystalshave a unique structure that makes them veryuseful in industry.
   折叠链状晶体具有独特的结构，这使得它们在工业中非常有用。
3. 3. The folded chain crystals are usedas a lubricant in manyindustrial processes.
   折叠链状晶体被用作许多工业过程中的润滑剂。