多层模型 meaning in English

multi-tiered mold
multi-tiered mould
multilayered model
multiple layer model

To realize distributed database , we mostly use the rmi mechanism and adopt multilayer database model
我们主要利用javarmi处理机制，采用数据库多层模型，实现分布式数据库的处理。
This paper introduces multilevel modeling technique and its applications to the research of social sciences
摘要文章介绍了多层模型在社会科学领域的应用，并比较多层模型与普通模型的分析结果。
It also compares the analytical results of multilevel models with the ols results to better understand the advantages of multilevel modeling technique
结果显示，普通模型过高地估计自变量对因变量的作用及影响程度；相反，多层模型调节数据的聚类性质，其参数估计更精确，得出的结论更符合实际。