这些对象之所以定义为隐式的，是因为您不必显式地声明它们。

These objects are defined as implicit because you do not have to explicitly declare them.

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ODBC应用程序可以使用这些隐式定义的描述符句柄执行大多数操作。

The ODBC application can perform most of the operations using these implicitly defined descriptor handles.

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在事件程序中隐式定义的变量 VEH 对事件处理程序和事件处理程序内嵌套的范围内的所有活动可见。

The variable VEH that is defined implicitly in the event handler is seen by all activities inside the event handler and scopes nested inside the event handler.

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