请教高手，这段话怎么翻译？（关于多晶硅的）？ that is, the present invention relates to a high-purity polycrystal silicon rod having a cylindrical shape, charac-terized in that a crystal [having a grain diameter smaller than that of a crystal at a location ( where the distance from the center of deposition to the periphery is 50% of the length from the center of deposition to the periphery) ] is existent in an area (where the distance from the center of deposition toward the periphery is more than 50% of the length in the same lengthwise direction). 也就是说， 此专利是关于一种圆柱状的高纯多晶硅棒, 其特征是在从沉积中心到棒的边缘距离的50%以外处有晶体， 其颗粒直径小于从沉积中心到棒的边缘距离的50%处的晶体。 （俩个晶体， 一个在50%处（从中心到边）， 一个在50%以外， 后者的直径小于前者）。 usp 5904981 (1999) , too old???查看更多
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