Trial and error revealed that it was best to put in the amide before the epoxide.尝试和误差法表明,最好在环氧化之前引进酰胺基.The EBR vulcanizate of different epoxide number was prepared.选择了EBR加工 中适合的配合剂和综合性能较好的硫化配方,并制备了不同环氧值的EBR硫化胶.The locki...
The old trees were profiled against the pale sky.那些老树的轮廓映衬在苍白的天空上.At which stage of the ETL should data be profiled?简述应该在ETL的哪个步骤来实现概况分析?The results show the memory consumption figures for the different profiled scenario...