该模块是系统数据分析的核心部分，主要完成数据采集和动态数据交换以及数据运算、统计、存储、合理性检查、删除等功能。
This module is the core of system, its functions include data acquisition, dynamic data exchange, data operation, data statistics, data storage, reasonability check and data delete etc.
它会先检查查询的型态和查询中的各种运算子。
It first examines the shape of the query and the various operators that comprise it.
对话方块能够让您检查及评估变数和运算式。
The QuickWatch dialog box lets you examine and evaluate variables and expressions.
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