1. A pecan tree can live for300 years and when they''re old and gnarled, they can still bear fruit.
今天是核桃树节，核桃树能活300年，老了之后还能结果。
2. Pecan tree of the kernel in the naturally occurring skin wrinkles, the hundreds of slices of walnut or bonded together to form objects of various shapes, it has excellent texture and hollow effect.
山核桃树果实的内核皮在自然生成的皱纹，把成百上千个核桃或切片粘结在一起，组成形态各异的物品，则具有极佳的纹理和镂空效果。
3. Pecan tree is young and small.
大核桃树幼小。
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4. Different site conditions highly significantly affected stem height, which varied from 7.47 to 9.54 m. Cultural Regionalization for the Introduced Pecan Tree in China I Comparative Study of the Site Conditions between USA and China
不同立地因子组合对竹高有极显著影响，平均竹高变化范围在7.47~9.54m之间.美国山核桃引种栽培区划研究I原生境与新生境自然条件比较