缔约双方应以信函相互通知已经完成批准本协定的所有必要的法律程序。

Each Contracting Party shall notify the other Contracting Party by correspondence that the legal formalities required for approval of this Agreement have been compiled with.

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本协定应在缔约国双方完成各自的法律程序后相互通知，自最后一方的通知发出之日起生效。

After mutual notifications of the completion of legal procedures by the Contracting States, the present Agreement shall enter into force on the date of the later notification.

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