A tree's rate of growth is limited by its lignin structure, which is what determines the tree's strength and form.
树木的生长期受限于它的木质构造，后者决定树的硬度和形状。
Result showed that different waterlogging depths have obvious effects on tree height, diameter at breast height, under branch height, trunk morphological structure, stem base form, and growth process.
结果表明：不同水分条件对池杉的树高、胸径、枝下高、干形、树干基部形态及生长过程均产生明显的影响。
This will inevitably invoke industrial upgrading, readjustment of industrial structure and fundamental change of economic growth form.
这必将引发产业升级、产业结构的大调整和经济增长方式的根本性改变。
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