戊酸

Using ferric chloride, aluminum chloride and cupric chloride as catalytics in the synthesis of isoamyl formate,acetate and propionate.

本文分别用氯化铁、氯化铝和氯化铜催化合成甲、乙、丙酸异戊酯，实验证明氯化铁、氯化铝有较高催化活性，对五个碳以下的有机酸和醇的酯化活性较高，并对其机理进行了探讨。

There were 18 common components which are 2-pentylfuran,hexanoic acid,n-octanal,heptanol,nonenal,n-nonylalcohol,octanoic acid,methyl stearate,et al.

二者相同组分18个，分别是：2-正戊基呋喃、己酸、正辛醛、壬醛、正壬醇、正辛酸、硬脂酸甲酯等。

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。