KDT tree : Multi-dimensional index structure for spatial data
KDT树：一种多维空间数据索引结构
The oxygen content of the KDT SiC fiber is 13.8 % , that is much lower than that of KD fiber , 20.3 % .
经LOTC法所得到的KDT型SiC纤维的氧含量约为13.8%，低于KD型SiC纤维的20.3%。
kdt