排序方式: 共有4条查询结果,搜索用时 390 毫秒
1
1.
IntroductionLong chainα,ω- dicarboxylic acids (DCA ) areversatile chemical intermediates used as rawmaterials for the preparation of perfumes,polymers,and adhesives[1] .Various strains of C.tropicalis are known to produce DCA whencultured with alkanes or fatty acids as the carbonsource[2 ,3] . During aerobic and viscous fermentation,theoxygen supply is of crucial importance becauseinsufficient oxygen can lead to suboptimalproductivities[4 ] as well as products of low quality.Several meth… 相似文献
2.
3.
利用透射电子显微镜对JYN型陶瓷面砖胶粘剂等一些新型建筑材料进行了研究,提供出粒子形貌、粒径及其分布等图片和数据,并开始将分析结果予以指导生产。 相似文献
4.
1