酸酐

Dispatch Changzhou area arranged business company on August 19 anhydride is basic side benefit is empty, trafficker receives dish of discretion, open quotation quote is in 10200 yuan more / ton around, exchange views actually to be in roughly 9800-10000 yuan / ton around send, it is scattered user more, go into operation of downstream not saturated colophony is very small, trafficker visits the town after sky, the market exchanges views unusually delicate.

生意社8月19日讯常州地区偏苯三酸酐基本面利空，贸易商接盘谨慎，开盘报价多在10200元/吨附近，实际商谈大致在9800-10000元/吨附近送到，多为零散用户，下游不饱和树脂开工很低，贸易商看空后市，市场商谈异常清淡。

M Trifluoromethylacetophenone was synthesized by the reaction of acetic anhydride with the Grignard reagent of 3 bromo benzene prepared from trifluoromethylbenzene , in 40% overall yield.

以三氟甲基苯为原料，经过溴化、格氏反应后与乙酸酐反应合成间三氟甲基苯乙酮，总收率40%。

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。