物理键 meaning in Chinese

secondary or physical bond

This event is raised when a user presses a physical key
当用户按物理键时将引发此事件。
This event is raised when a user releases a physical key
当用户松开物理键时将引发此事件。
For more information about character and physical keys , see
有关字符键和物理键的更多信息，请参见
When a user presses a key , windows forms determines which event to raise based on whether the keyboard message specifies a character key or a physical key
当用户按键时， windows窗体根据键盘消息指定的是字符键还是物理键来确定要引发的事件。
If a logical primary key exists for a table in the data source view and a physical key is added to the table in the data source , the logical key is removed and replaced by the physical key
如果数据源视图中的表存在逻辑主键，那么，在数据源中的表中添加物理键时，逻辑键将被删除。