There are significant differences in growth in the young treestage among different provenances of Sea Buckthorn and the differences are obvious with different geographic population variation.
试验表明，沙棘不同种源的营养生长和生殖生长以及果实生化成分都存在明显的差异。
2
The parsing stage creates arbitrary tree structures on the basis of token lists.
解析阶段在记号列表的基础上创建任意的树结构。
3
The parsing stage might be considered the most complicated, as it requires a somewhat recursive design to parse the XML tree.