Àn / zhào / hé / tóng / huò / wù / jiāo / fù / zhī / rì / jí / wéi / fù / kuǎn / qī / xiàn / de / qǐ / suàn / rì

按照合同，货物交付之日即为付款期限的起算日。

According to the contract, the date of delivery is considered the starting date for the payment period.