采用分段浸取新工艺是黑荆树皮单宁提取的关键技术。
The key technique of the new process of tannin extraction from black wattle bark is to divide the extraction into two steps.
研究了以黑荆树皮栲胶废料为原料，在微波辐照下氯化锌法制取活性炭的方法。
In this paper, the method of preparing activated carbon from waste materials of tannin extract with zinc chloride by microwave radiation was studied.
影响黑荆树皮量主导立地因子有土壤质地、坡位、黑土层厚度、坡形、土壤有机质含量。
The paper points out that the factors which influence the bark quantity are soil quality, the position and the shape of the slope, the depth of humus soil, and the content of organic matter.
通过对黑荆树皮单宁进行醇沉纯化和溶剂萃取分级，可得到分子量分布范围不同的单宁级分。
Tannin fractions with different molecular weight distributions were obtained by purification of alcohol precipitation and fractionation of solvent extractions of black wattle bark tannins.
通过对黑荆树皮单宁进行醇沉纯化和溶剂萃取分级，可得到分子量分布范围不同的单宁级分。
Tannin fractions with different molecular weight distributions were obtained by purification of alcohol precipitation and fractionation of solvent extractions of black wattle bark tannins.
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