(a) under article 7 (previously 4) agrees with the carrier to replace a negotiable transport document by a negotiable electronic transport record or to replace an electronic transport record by a negotiable transport document, or
(a) 根据第7条（原第4条）同意承运人以可转让电子运输记录取代可转让运输单证或以可转让运输单证取代电子运输记录，或