The most typical natural landscape of Yakushima Island is its cedar named Yakusugi, the age of which can surpass one thousand years; some of the cedars' diameter can be 5 meters.
屋久岛最为典型的自然景观要属古屋久杉树，树龄均超过一千年，其中一些树木的直径达到5米。
2
The height structure and diameter structure of A. senticosus population relate with community environments and with its own age structure characteristics.
刺五加种群的高度结构与径级结构的变化都与群落环境以及本身的年龄结构特点有关。
3
The diameter of the main pancreatic duct is increased with the age. There is a significant difference.