记录了它的产地、生长发育的过程信息，每个电子耳标标识唯一一头生猪。

The tag records the procedure info of its origin and growth, with each ear tag targeting one live pig.

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记录了它的产地、生长发育的过程信息，每个电子耳标标识唯一一头生猪。

The tag records the procedure info of its origin and growth, with each ear tag targeting one live pig.

youdao