美国SEG协会把地震剖面的极性规定为SEG正常极性和SEG反正常极性。
American SEG defines seismic record polarity as SEG normal polarity and SEG reverse polarity.
我们可以针对不正常的蛋白质，在纳米粒中放上一个极性电荷，用磁力把它们集中到肿瘤部位。
We could target specific abnormal proteins, put a polar charge on the nanoparticles and use magnets to focus them on those areas of the tumor.
它需要一个完整的眼球，一个极性细胞具有正常功能的完整视网膜，还有将信息传递给大脑的视觉神经。
It relies on an intact eyeball, an intact retina with functioning bipolar cells, and an optic nerve to convey the information to the brain.
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