结果表明金属活性助剂mca，在不同的硫化体系中可提高丁腈橡胶的拉伸强度、硬度，改善丁腈橡胶的耐热老化性能及压缩永久变形性能。
The results have shown that MCA can increase tensile strength and hardness of NBR and also improve the properties of resistance to heat aging and compression set of NBR as well.
世界卫生组织推荐使用基于辅助剂的疫苗，他们允许制药公司生产含较少活性成分的药剂，来满足日益增长的需求量。
The World Health Organization recommends adjuvant-based vaccines, because they allow drug makers to create doses that use less of the active component, increasing available supplies.
表面活性剂、助剂、软水剂、增白剂。
Surface active agent, auxiliary, water softener and whitener.
应用推荐