堆芯区域 core area

多区堆芯 multi region core ; multizone core

堆芯边缘区 core edge zone

双区堆芯 two-zoned-core

堆芯分区 core-zoning

点火区再生区堆芯 seedandblanketcore

堆芯八分区 core octant

单区堆芯 single-region core ; single region core

三区堆芯 three-region core