乙酰苯胺 、 己二酸和邻苯二甲酸氢钾可以使PVC结晶度增大.Acetanilide and hexane diacid, potassium hydrogen phthalate could improve PVC crystallinity.同时可以供应己二酸螺旋霉素,恩波酸螺旋霉素.Spiramycin adipate and spiramycin embonate are also available for animal use...
在音像拷贝中,色调值是反转的.In a negative copy the tonal values are reversed.趋势是你的朋友,只除了在结尾它反转的时候.The trend is your friend except at the end when it bends.在英国, 房价也出现了反转的征兆.There are ominous signs of a downturn in Britain, too....