internal ester
英 [ɪnˈtɜːnl ˈestə(r)]
美 [ɪnˈtɜːrnl ˈestər]
内酯
双语例句
- The advances of internal donors in Ziegler-Natta catalyst system were introduced in this paper, at the same time catalysts were analysed with the internal donor components such as monoester, diester, diketone and diol ester.
对丙烯聚合Ziegler-Natta催化剂中内给电子体的研究进展情况进行了综述，同时分析了单酯类、双酯类、二醚类、二酮类和二醇酯类化合物作为内给电子体的催化剂特性。 - The results showed that the expiry date of the capsule is 3.14a with the internal ester as an inder at the room temperature. ( 20 ℃).
结果表明：在室温（20℃）下，以穿心莲内脂为指标，复方炎得平胶囊的有效期为3.14a。 - Methods HPLC was employed in monitoring the change of andrographolide and dehydroandrographolide in the process of percolate extraction, and investigating the effect of temperature on internal ester.
方法采用HPLC对穿心莲渗漉提取过程中，穿心莲内酯和脱水穿心莲内酯的变化过程进行监测，并考察加热温度对内酯类成分的影响。 - It not only describes the extraneous factors influencing the esterification, but also explains the internal reasons which restrict the ester value of iso-octyl salicylate.
文中讨论了影响酯化反应的外部条件，同时对制约水杨酸异辛酯酯化率的内在因素也作了相应的解释。