"China has reached this stage of development where traditional environmental risks are overlapping with environmental risks that are modern."
VOA: standard.2010.04.07
They're trying to achieve satisfaction through their mouth of a sort they didn't get in this very early stage of development.
他们想通过这种口腔运动,来获得本该在口腔期获得的满足感。
What's a physical mechanism that could lead to differences between these two cells at this very early stage of development?
什么样的生理机制导致细胞,在发育伊始就产生这些差异
This surface layer thickens at an early stage in a mouse after 8 days of development.
发育8天后,老鼠早期胚胎的,外胚层开始增厚。
And finally, there is regression, which is returning to an earlier stage of development.
最后,来说说退行,意思是回归到发展的某个早期阶段。
One experiment a post doc of mine did was he took these cells and injected them back in to the ear into the otic vesicle at the stage where we think the cells are in development.
我的一位博士后做了一个实验,他提取出这些细胞,然后注射到,处于发育阶段的,耳部泡囊中。
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