... 落叶松栲胶 larch extract; 落叶松溃疡 {植病} larch canker; 落叶松毛虫 dendrolimus sibiricus; ...
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Larch Tree Extract 落叶松萃取精华 ; 落叶松精华
larch bark extract 落叶松树皮浸膏
Larch tannin extract 落叶松栲胶
sulfonated larch tannin extract 改性栲胶
The synthesis of larch extract tannin amphoteric water treatment agent was divided into three phases.
在实验过程中落叶松单宁两性水处理剂的合成主要分为三个阶段。
This experiment include the chemical synthetic modification of larch extract tannin and the measure of its water treatment properties.
实验分为落叶松单宁的化学合成改性和其水处理性能的检测两大部分。
Preparation of larch extract tannin amphoteric water treatment agent has anionic and cationic group by use of larch extract tannin was studied.
本论文以落叶松单宁为原料研制含阴、阳离子基团的落叶松单宁两性水处理剂。
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