To exploit the resources of shikimic acid, the content of shikimic acid in Masson pine leaf, Oriental arborvitae leaf and Star anise, the extraction and recovery experiments were studied by HPLC.
为了开发莽草酸资源，以高效液相色谱法分析了马尾松、侧柏以及八角茴香中的莽草酸含量，并研究了马尾松中莽草酸的超声提取、加热回流两种提取方法和不同加标水平的回收试验。
Green pine, spit out the new as the same as the needle leaf, light green of light green.
翠绿的松树，吐出了新的像针一样的叶子，浅绿浅绿的。
I feel the delicate symmetry of a leaf. I pass my hands lovingly about the smooth skin of a silver birch, or the rough shaggy bark of a pine.
我感到树叶的对称美，用手摸着白桦树光滑的树皮或是松树那粗糙的厚厚的树皮。
I feel the dedicate symmetry of a leaf. I pass my hands lovingly about the smooth skin of a silver birch or the rough shaggy bark of a pine.
我感到树叶的对称美，用手摸着白桦树光滑的树皮或是松树那粗糙的厚厚的树皮。
In this paper, stomatal conductance of leaves and anatomical structure of leaf surface in a pine-tea interplantation and a pure tea plantation are studied using MK-3 Antomatical Porometer.
本文利用光镜技术和MK-3型自动气孔计对松茶间作和单作茶园茶树叶片的解剖构造和气孔传导力进行了比较研究。
The photosynthesis rate will increase with the descendant leaf potential and soil potential, which demonstrates that Masson pine has much higher productivity of drought stress.
同时，光合利用效率随叶水势、土壤水势的下降总体呈上升趋势，说明马尾松具有较高的耐旱生产潜力。
It was found that the decomposition rates of both broad - leaved leaf litters are greater than that of pine needles.
结果表明，滇青冈和元江栲枯叶分解速率高于云南松针叶。
It was found that the decomposition rates of both broad - leaved leaf litters are greater than that of pine needles.
结果表明，滇青冈和元江栲枯叶分解速率高于云南松针叶。
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