学科生命科学总论 词目保护鞘 英文Protecting sheath 释义为内皮木质化所形成的代替表皮的鞘层见于禾本科植物等的根部
当我们注意到了建筑上可循环玻璃砖和用竹鞘保护起来的石柱，又不禁会问这些稀有而并不实用的材料是否真的有必要用？
And while we ran our fingers over recycled glass block and eyed bamboo-sheathed columns we couldn't help but notice the luxurious addition of some rare and not necessarily sustainable materials.
但原植体耐光性比藻丝体强，说明在野外胶鞘对保护发菜免受强辐射伤害有重要意义。
But photostability of thallus is better than that of filament, which means sheath can protect cells form radiation.
昆虫和软体动物等一些动物的装卵的保护囊；卵鞘。
A protective capsule of certain animals, such as insects and mollusks, that contains eggs; an ootheca.
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