The crystal phase is composed of the cylinder corundum and the circle solid solution of the zirconia and mullite.

晶相组成为圆柱状刚玉、圆粒状锆石和莫来石固溶体。

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The crystal phase is composed of the cylinder corundum and the circle solid solution of the zirconia and mullite.

晶相组成为圆柱状刚玉、圆粒状锆石和莫来石固溶体。

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