另外材料的结晶度和熔点有了一定程度的提高.Also, the point and the degree of crystallization were increased.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.酯化反应使纤维素的结晶度...
Eat the litchis and the ba - na - na.吃荔枝,吃香蕉.BA 110 ethane pyrolysis furnace is an important equipment of ethylene plant.BA110乙烷裂解炉是乙烯装置的重要设备....Kevin P Kearns, BA (Hons), University of Liverpool.凯文·P. 卡恩斯,利物浦大学(荣誉)文学士Th...
在林木地带发现的雀鸟有各类柳莺 、 石青 、 知更鸟 、 夜莺和山雀.Sightings in wooded areas include warblers, flycatchers, robins, bulbuls and tits.大山雀开始产卵日期明显分为两个阶段.There are two stages before clutch day great tit.那只山雀被摔昏了,躺在地上一动不动.It was so dazed it...