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1·Bohr atom is a solar system in miniature, with electrical forces taking the place of gravitational forces.

玻尔的原子模型是太阳系的缩影，不过以电力替代万有引力。

2·A Bohr atom is a solar system in miniature, with electrical forces taking the place of gravitational forces.

玻尔的原子模型是太阳系的缩影，不过以电力替代万有引力。

3·OK, this is the Bohr model, Bohr model of the atom is planetary or nuclear.

好的，这就是波尔模型，波尔的原子模型是行星模型或者核心模型。

4·In 1913, the Danish physicist Niels Bohr was the first to propose a theory of the atom based on quantum principles.

1913年，丹麦物理学家尼尔斯·波尔第一个提出基于量子原理的原子理论。

5·Now, let's take a look at the Bohr model of the atom.

让我们看看波尔的原子模型。

6·Bohr was able to predict the wave lengths of the light from the makeup of the atom, and the jump from electron orbit to electron orbit.

玻尔根据原子的结构，和在电子轨道间的跳跃情况，就能预见光的波长。