Column security labels cannot be modified.
列安全标签不能修改。
It is introduced as a building block for security labels.
它被引入作为安全标签的一个构件。
Security labels are applied to data in order to protect the data.
安全标签被应用到数据上，以保护该数据。
Security labels are applied to data in order to protect the data.
安全标签被应用到数据上，以保护该数据。
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