求翻译：卖方应严格按照本合同约定期限对设备进行安装、调试、培训。否则，卖方每逾期一天应向最终用户支付合同价款的 ‰作为延期付款滞纳金。是什么意思？

The seller should be strictly in accordance with the contract period for equipment installation, commissioning and training. Otherwise, the seller should the end user for each overdue day to pay the contract price in ‰ as deferred payment late fees.

The seller should be strictly in accordance with the contractual period of time for equipment for the installation, commissioning, training. Otherwise, the seller should be a day per overdue payment of the contract price to the end-user as a deferred payment of overdue amounts per 1,000 live births.

The seller should strictly carry on the installment, the debugging, training according to this contract agreement deadline to the equipment.Otherwise, the seller exceeds the time limit one day to be supposed every time to the end-user payment contract cost ‰ takes the deferred payment fine for delay

The seller should be strictly in accordance with this contract period for equipment installation, commissioning, training. Otherwise, the seller should for each overdue day for end users payment of contract cost per thousand as deferred payment late fees.

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