The integrated model can simplify administration of privileges, and is appropriate for multilevel relation database system which has many users or complex security levels.
该模型方便了管理员的权限管理，适合用户较多，安全层次比较复杂的多级关系数据库系统。
For modeling the multilevel few sample or irregular data, the accumulated multilevel statistical models of multivariate full model was built on ordinary multilevel statistical models.
为了解决多层的少样本或无规则数据的建模问题，在一般多层统计模型的基础上提出了多变量整体模式的累加多层统计模型。
So the cascade multilevel inverters have been used in many industrial application fields such as fan or pump and the good saving-energy effect has been gotten.
采用模块化安装，易于扩展和维修，并具有冗余功能。现已广泛应用于风机、泵类负载调速场合，取得很好的节能效果。
Methods 24 patients of multilevel cervical myelopathy with 3 or 4 consecutive segments were treated with segmental anterior cervical decompression with fusion.
方法对24例连续3或4个节段病变的颈椎病患者采用分节段减压融合术治疗。
Methods Objective management was applied in the multilevel training of 637 nurses by way of multi-stage, multi-project and gathered or separate training.
方法应用目标管理方法对637名护士进行分层级培训，实施分阶段、分项目、集中与分散培训相结合的方法。
Results. In this subanalysis of SPORT data, multilevel spinal stenosis did not demonstrate worse baseline symptoms or worse treatment outcomes in isolated spinal stenosis;
结果：在对脊柱疾患临床结果研究实验（SPORT）的结果资料做亚组分析后发现多节段椎管狭窄在基本症状和治疗结果上不比单节段病患差；
Results. In this subanalysis of SPORT data, multilevel spinal stenosis did not demonstrate worse baseline symptoms or worse treatment outcomes in isolated spinal stenosis;
结果：在对脊柱疾患临床结果研究实验（SPORT）的结果资料做亚组分析后发现多节段椎管狭窄在基本症状和治疗结果上不比单节段病患差；
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