Conclusion The content of main volatile constituents of Amomum villosum from different populations have a obvious difference,and the difference relates to entironment of different populations.
结论不同居群砂仁果实挥发油的主要化学组分相对含量差异较大,其差异与各产区生态环境有关。
参考来源 - 道地产区不同居群阳春砂挥发油化学成分分析·2,447,543篇论文数据,部分数据来源于NoteExpress
Du Bois was concerned that race was being used as a biological explanation for what he understood to be social and cultural differences between different populations of people.
杜·波依斯担心,种族会被用来作为生物学层面上的一种解释,并用以说明他所理解的不同人群之间的社会和文化差异。
Culture is also passed on among people of the same time or among people belonging to different populations.
文化也在同一时代的人之间或属于不同种族的人口之间传递。
Each of those different populations gets up in the morning and puts on symbols of their status.
这些不同人群中的每一位,早晨起床以后,都把自己的社会地位象征披挂上。
So if you think of the effect of technology on the different populations, the young-age and the adult-age learners.
所以在思考技术对,不同人群的影响时,要想到青年和成年学者。
You know probably that within your bone marrows there's populations of cells, there are different kinds of cells within the bone marrow.
你也许知道的,在你的骨髓里,有许多种细胞,骨髓中有不同种类的细胞
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