前期的热气球实验发现沙漠中的沙暴可以被电荷化，虽然目前尚没有完全搞清楚原因，但很可能与粒子间一系列的碰撞有关。

Prior research done with weather balloons had shown that desert dust storms can become electrified through a process of particle collision that is not yet completely understood.

youdao

在研究前期的一年半中，受伤实验主体相比于对照组，其脑额叶前部皮层背外侧更厚，之后，厚度逐渐恢复正常。

During the first year and a half of the study, the trauma subjects also acquired a thicker dorsolateral prefrontal cortex than controls did. After that, though, the thickness gradually normalized.

youdao

UAB小组通过在实验室培养皿中培养人类健康肺细胞和人肺癌前期细胞进行试验。

The UAB team conducted its tests by growing both healthy human-lung cells and precancerous human-lung cells in laboratory flasks.

youdao