问题描述：
英语翻译
they are among the compounds which when prepared in a size range of from about 0.2 to about 0.4 microns diffuse light as well as or better than any other known compound
they are among the compounds which when prepared in a size range of from about 0.2 to about 0.4 microns diffuse light as well as or better than any other known compound
问题解答：
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