实验表明，母体离子极不稳定。

The experimental results show that the parent ion is extremely unstable.

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并用速率方程对母体离子阶梯模型的多光子电离进行了分析。

The MPI of molecular ions model was analyzed with rate equations.

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另外还从多个角度对硫化氢分子的多光子电离解离（MPID）机理进行了分析，推论出其MPID过程应属于母体离子碎裂模式。

In addition, we have analyzed the multiphoton ionization dissociation(MPID) mechanism of H 2S from several aspects, and conclude that its MPID process belongs to parent ion fragmentation mechanism.

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And this is just a picture showing some of these sizes with their parent. So, for example, a lithium here, you can see how lithium plus is smaller than the actual lithium atom in its neutral state.

这是一张对比图,展示某些离子与它们的母体，比如，这里是锂，大家可以看到正一价锂离子是多么的小,与中性锂原子相比。

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