你的文字界定了电子支付系统作为一种替代现金或信用卡付款方式，运用各种电子技术，以支付产品和服务的电子商贸。
Your text defines an electronic payment system as an alternative cash or credit payment method using various electronic technologies to pay for products and services in electronic commerce.
简要介绍了EDI电子数据交换系统作为电子商务系统的技术平台，在国际商贸业务中所起的作用，以及EDI的历史由来。
The paper briefs on the role that EDI, as the technical platform electronic business system, plays in international business. Meanwhile, the paper gives a brief introduction of the history of EDI.
简要介绍了EDI电子数据交换系统作为电子商务系统的技术平台，在国际商贸业务中所起的作用，以及EDI的历史由来。
The paper briefs on the role that EDI, as the technical platform electronic business system, plays in international business. Meanwhile, the paper gives a brief introduction of the history of EDI.
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