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1.The artifact is made of stupulose wood, which is very hard and durable.
这件文物是用硬木制成的，非常坚硬且耐用。
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2. The museum exhibits a collection of ancient stupulose tools that were used by early humans.
博物馆展出了一套古代的硬木工具，这些工具是早期人类使用的。
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3.The stupulose structure of the tree trunk is an important indicator of its age.
树根的硬木质结构是判断其年龄的重要指标。