1)  Agriculture and forestry colleges
农林类
2)  Agricultural and forestry universities
农林类高等学校
3)  Agriculture and Forestry
农林
1.
Study of Sci-tech Achievements System Assessment in Agriculture and Forestry Based on Artificial Neural Network;
基于人工神经网络的农林科技成果评价研究
4)  agroforestry
混农林
1.
Establishment and Application of Agroforestry Database System in Hills Land of Red Soil;
红壤丘陵区混农林经营模式数据库的建立及其应用
2.
It was clear that the 3 indexes of mean diameter at breast height, coverage and distribution of trees could describe better the relationships between agroforestry structure features and its protection benefit.
本文从实际观测调查出发,应用多元统计分析的方法,考察混农林的各结构因子指标与防风效益之间的关系。
5)  Agriculture and forestry
农林业
1.
Sustained development of environment protection had become a major issue in the field of agriculture and forestry.
环境保护走可持续发展之路,已成为当今农林业和世界可持续发展领域的重要课题。
6)  agro-forestry
农林复合
1.
Study on keeping duration of agro-forestry patterns for young poplar trees;
幼龄杨树与不同农作物农林复合模式经营年限探讨
2.
A Model Study on Mountain Agro-forestry of Jiangnan Countryside in Ningan City;
宁安市江南乡山地农林复合模式研究
参考词条
补充资料:C24类甾醇类
分子式:
CAS号:

性质:胆汁酸属于类甾(或固)醇类,又称为C24类甾醇类。正常人胆汁中有结合胆汁酸和游离胆汁酸两大类,并以前者为主。游离胆汁酸有胆酸、脱氧胆酸和鹅脱氧胆酸等;结合胆汁酸系指上述胆汁酸以酰胺键(简称肽键)与甘氨酸或牛磺酸结合,分别成为甘氨胆酸或牛磺胆酸等。这些化合物存在于大多数脊椎动物中,是“胆苦”的主要成分。结合胆汁酸易溶于水,这是由于其分子中既含有亲水的羟基和羧基,又含有疏水的甲基,且这两种性质不同的基团又完全排列在环戊烷多氢菲核的两侧,使分子分为“亲水”和“疏水”两个侧面。故结合胆汁酸具有强乳化剂功能,使肠腔内油脂乳化成微粒,以增加油脂与消化液中脂肪酶(lipase)接触面积而便于脂类消化吸收,同时也促进对脂溶性维生素的吸收。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。