查询词典 sitosterol

And β-sitosterol is detected for the first time in studying of Tilia mongolica wood. By GC-MS techniques, it is ascertained that forty-five kinds of chemical components were in the leaves of Tilia mongolica and they accounted for over 80.35 percent of total volatile oil.

通过对蒙椴树叶成分利用气相色谱-质谱连用技术分析，确定出其中的45种化学成分，并通过标准峰面积法确定了它们的相对含量，已鉴定成分占总油状组分的80.35%，主要成分以脂肪酸、烷烃、醇类物质为主。

Andβ-sitosterol is detected for the first time in studying of Tilia mongolica wood.By GC-MS techniques,it is ascertained that forty-five kinds of chemical components were in the leaves of Tilia mongolica and they accounted for over 80.35percent of total volatil eoil.

通过对蒙椴树叶成分利用气相色谱-质谱连用技术分析，确定出其中的45种化学成分，并通过标准峰面积法确定了它们的相对含量，已鉴定成分占总油状组分的80.35%，主要成分以脂肪酸、烷烃、醇类物质为主。

On the basis of spectral data and chemical evidence, they were identified as apigenin, scutellarein, hypolaetin , daucosterol, martynoside, 8 acetylharpagide, harpagide, scutellarein 7 glucoside, luteolin 7 glucoside, triacontanoic acid, n hexacosanoic acid,β sitosterol , respectively.

从蒙古莸全草的甲醇提取物中分得 12个化合物，经波谱分析和理化常数测定确定其结构为洋芹素，4′-羟黄芩素，海波拉亭，胡萝卜甙，角胡麻甙，8- acetyl-harpagide，harpagide，4′-羟黄芩素- 7-葡萄糖甙，木犀草素- 7-葡萄糖甙，三十烷酸，二十六烷酸和β-谷甾

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。