这样既可以使基布得到充分收缩,同时又防止了基布收缩过快造成布面不平整。实验表明,PVA预处理能提高贝斯革的撕裂力学性能、透气性和弹性。 聚氨酯湿法凝固。本文提出... 杨友红 - 《东华大学》 被引量: 4发表: 2008年 PVC布面革的生产工艺 郁小强江阴华宏集团橡塑制品有限公司CNKI聚氯乙烯郁小强: " PVC布面革的...
PROBLEM TO BE SOLVED: To avoid much time from being taken till information display at application of power in the case of no backup for the FM multiplex receiver and to prevent updated information at application of power from being unrewritten due to duplicate update codes in the case of back...
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PROBLEM TO BE SOLVED: To obtain a novel promoter which comprises a DNA molecule containing a specific base sequence and exhibiting a specific promoter activity and is used for the production,or the like, of a gene recombinant vaccine e.g. a recombinant virus, or the like, that has a short...
芜湖到湘西,颠簸的1000多千米,是我和江姐的第一次出门远行.火车窗外,一路山清水秀,江姐拿着她像素800的手机连拍了好多张,我摸着已经冷透的"康师傅"无奈地对她说:"妈,吃面."我随便翻了她视为珍宝的照片,发现鈿都没有对焦.我们好不容易才挤上去学校的汽车.这时,江姐像朝启夕败的喇叭花,精神气不再.她靠在椅...