However, at the logical level, code is not aware of physical level types.
然而在逻辑层，代码并不知道物理层类型。
When designing the logical level, the architect focuses mainly on implementing system functionality.
在设计逻辑层次时，架构师主要集中关注于实现系统功能。
The dynamic view at the logical level traces the message flows through the major components of the system.
逻辑层上的动态视图跟踪通过系统主要组件的消息流。
When using an MDD approach, the goal is to model at the logical level and generate implementation artifacts.
当使用MDD方法时，目标是在逻辑层建模，并且生成实现工件。
Despite the use of simpler structures at the logical level, some complexity remains, because of the large size of the database.
尽管在逻辑层使用了比较简单的结构，但由于数据库的规模巨大，所以仍存在一定程度的复杂性。
A true relational DBMS would allow for a fully normalized database at the logical level, while providing physical storage of data that is tuned for high performance.
一个真正的关系型数据库管理系统，既在逻辑层考虑到完全规范化的数据库，又提供数据的物理存储，这些数据为了高性能而被调整。
It supplies the account formulas and partial circuits parameters of the threshold value for adjusting and setting-up logic level. It makes logical level boundary clear and well-judged.
给出了调节设定逻辑电平阈值的计算公式和部分电路参数，使逻辑电平界限清楚，判断确切。
Discuss the three aspets of the logical-level simulation theory of digital circuits: the construction of delay model and multi-state model, simulation algorithms, and methods of component computation.
讨论了数字电路的逻辑级模拟中元件传输延迟模型、元件状态值模型的建立，逻辑模拟的算法以及元件计算的方法。
Discuss the three aspets of the logical-level simulation theory of digital circuits: the construction of delay model and multi-state model, simulation algorithms, and methods of component computation.
讨论了数字电路的逻辑级模拟中元件传输延迟模型、元件状态值模型的建立，逻辑模拟的算法以及元件计算的方法。
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