Recent research by Peg Nopoulos, Jessica Wood and colleagues at the University of Iowa illustrates just how difficult it is to untangle nature and nurture, even at the level of brain structure.
派格·诺普洛斯、杰西卡·伍德以及他们的同事最近在爱荷华大学做了一项研究，结果显示，即使是从大脑结构上来分析，想要理清先天与后天的纠缠也是十分困难的。
To improve the treatment effect of endostain, we used PEG to modify its structure. Because PEG so far is the best and most popular modifier forproteins.
为提高内皮抑素的治疗效果，本研究采用聚乙二醇（PEG）对内皮抑素进行结构修饰。
The influence of decomposing rate and the amount of PEG on structure, morphology and electrochemical properties was studied.
考察了PEG的分解速率和添加量对材料结构、形貌和电化学性能的影响。
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