The Snake Nebula, silhouetted against ancient stars massed near the nucleus of our galaxy, which is about 25, 000 light years away.
蛇形星云,它的轮廓与聚集在我们星系中心的古老恒星逆向,约25,000光年远。
Light from a laser comes from the electrons which surround the nucleus of every normal atom.
来自激光器的光是围绕普通的原子核的电子产生的。
The observations showed that there are two kinds of neurons (dark and light) in the arcuate nucleus which might be responsible for producing both dopamine and releasing hormones.
观察结果表明:在弓状核内有暗细胞和亮细胞两种神经元,它们可能兼具产生多巴胺和释放激素的功能。
Nothing happened when they turned on the light in cells in an area of the brain called the subthalamic nucleus.
VOA: special.2009.04.07
If dark matter particles exist, scientists say, they should be able to observe a small amount of light given off when they hit the nucleus of a xenon atom.
VOA: special.2009.07.21
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