Polypetone is a specially designed mixture of peptones , it contains a wide spectrum of peptide sizes , used in media where wide range of fastidioud organisms may be grown 性状:本品是多种蛋白胨混合的特殊蛋白胨,富含各种分子量的肽,常用于培养要求高的微生物。
Simultaneously , the distinct effect of every factor is studied in the paper . in this text , based on the lime - fly ash stabilized aggregates mixture design , the pavement behavior and performance of designed mixture is studied and contrasted with the mixture which is recommended by the design specification of highway asphalt pavement , including mechanical performance , stableness , anti - brushing performance , the anti - crack performance and fatigue performance 在配合比设计的基础上,研究了骨架密实型二灰碎石的力学性能、稳定性能(水稳性和冰冻稳定性) 、抗收缩性能、抗冲刷性能和疲劳性能,并与《公路沥青路面设计规范》推荐级配二灰碎石混合料的路用性能进行了对比。