该系统以PC机为核心单元,实现可视化交互、数据处理和成像;
PC serves as system center, realizing visual interface, data processing and image reconstruction.
您想要向已存在的模型元素添加一个确认器(核心单元类型),但是不能访问源代码。
You want to add a validator to an existing model element (the core unit type), but the source code is not accessible.
查询表达式是在一个树中组装的核心单元或节点,用于指定CriteriaQuery。
Query expressions are the core units or nodes that are assembled in a tree to specify a CriteriaQuery. Figure 1 shows the hierarchy of query expressions defined in the Criteria API.
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