collapsible 可折叠的，可拆卸的
牛津字典释义：that can be folded flat or made into a smaller shape that uses less space
...a collapsible chair.
foldable 可折叠的，可合拢的
字典：capable of being folded up and stored
医药科学 折叠式 - 小切口手法碎核白内障摘出联合折叠式人工晶状体植入术 Small incision cataract extraction with a manual nucleus division technique and foldable intraocular lens implantation