复制字段值。

Copy field values.

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可以根据需要把它们转换和组合为字符串格式，解析它们以寻找特定的字段值，使用它们查询对象的相关信息，使用它们获得完整的绑定，复制和释放它们。

They can be converted and composed into string formats, parsed for a particular field value, used to enquire about an object, resolve to get a complete binding, copied and freed as needed.

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读取复制表单的字段值。

The field values of the replication form are read.

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