Concrete as a structural material, the durability of pure material compared to the durability under stress should be completely different.
混凝土作为一种结构材料,其纯材料的耐久性与其工作服役状态下的耐久性应是完全不同的。
参考来源 - 模拟荷载作用下的混凝土耐久性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
Cellulose is a structural material in plants.
纤维素是一种植物里的结构性材料。
This is a very good structural material.
这是一个很好的结构材料。
It is a fact that no structural material is perfectly elastic.
事实上没有一种结构材料是十全十美的弹性体。
The virus then can self-assemble, that is, you've made a lot of genetic material, you've made a lot of the structural pieces, there has to be some way that the virus can reassemble, repackage itself into active forms.
于是,病毒可以进行自组装了,也就是说,已经制造出大量的遗传物质,也制造出了大量蛋白质外壳,那么病毒就能通过某些方式,重新装配或者重新组合成活性状态
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