[名词解释] 腐殖物质 humic substances
[名词解释] 腐殖物质组合 fraction of humic substances
[名词解释] 重组腐殖物质 humic substance in heavy fraction
[名词解释] 轻组腐殖物质 humic substance in light fraction
[名词解释] 腐殖物质发色基团 chromophoric group of humic substances
[名词解释] 胡敏酸 humic acid
[名词解释] 必需氨基酸(essential amino acids)
[名词解释] 必需脂肪酸(ossential fatty acids)
[名词解释] 非必需氨基酸(nonessential amino acids)
[名词解释] 生糖氨基酸(glucogenic amino acids)