The modular metro concept also offers an expansive range of dimensions that can be customized to specific operator requirements offering lower operational costs and easy maintenance and repair.
模块化的地铁概念还提供了一个广阔的尺寸范围，可定制，以提供具体的操作要求降低运营成本，易于保养和维修。
The theory has evolved to describe the relationship between finite groups, modular forms and vertex operator algebras.
理论已经逐步形成描述在有限群，标准化的形式和顶点算符代数之间的关系。
The theory has evolved to describe the relationship between finite groups, modular forms and vertex operator algebras.
理论已经逐步形成描述在有限群，标准化的形式和顶点算符代数之间的关系。
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