But this isn't a long paper, so are you going to need to pick a specific area of pre-modern agriculture, like irrigation or food crops of ancient Greece.
但这不是一篇很长的论文,所以你要选定一个现代以前农业的特定领域,像是灌溉技术,或古希腊的粮食作物。
In his paper, Dokuchaev studies hypothetical orbits in the area between the event horizon and the singularity to understand their dynamics.
在他的论文中,多库恰耶夫研究了位于视界和奇点之间的假设性轨道,来理解它们的动态变化。
Position a copy of the paper texture of the top half of the content area.
将一个纸张的材质盖住内容区头部的一部分。
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