以往单一的问题，有许多方法是不分散工作与高散射物质（多散射），如牛奶、人体皮肤。

The problem with many previous single scattering methods is they don't work well with highly scattering materials (multi-scattering) such as milk and human skin.

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这种散射,解释出了物质的本性。

The scattering is an indication of the nature of the substance.

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嗯，绪论，为了解释实验的结果,关于物质的alpha散射，卢瑟福说“,这儿有一个卢瑟福模型的脚注。

So, introduction, "in order to explain the results of experiments on scattering of alpha rays by matter, Professor Rutherford," and there is a footnote to the Rutherford model.

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And, in fact there's a technique of analysis used today that's called Rutherford back scattering where people actually saw that this is a means of identifying the substance, the sample.

事实上这是现在用的一种分析技术,称作卢瑟福背散射,就是人们实际上看到的那样,这是鉴别物质样品的一种方法。

麻省理工公开课 - 固态化学导论课程节选

The scattering is an indication of the nature of the substance.

这种散射,解释出了物质的本性。

麻省理工公开课 - 固态化学导论课程节选

So, introduction, "in order to explain the results of experiments on scattering of alpha rays by matter, Professor Rutherford," and there is a footnote to the Rutherford model.

嗯，绪论，为了解释实验的结果,关于物质的alpha散射，卢瑟福说“,这儿有一个卢瑟福模型的脚注。

麻省理工公开课 - 固态化学导论课程节选