中油EB发是中石油的可交换债券，全称为中石油可交换公司债券。

英文为PetroChina Exchangeable Bonds。中石油可交换债券是中国大陆的一家大型石油化工企业中石油集团发行的可交换债券，它允许债券的持有者在未来一段时间内，按照规定的条件，将其持有的债券转换为中石油集团的其他证券，如股票、优先股等。

中石油可交换债券的发行对于中石油集团来说，是一种有效的融资方式，可以帮助集团筹集资金，扩大业务规模，提高市场竞争力。同时，对于投资者来说，中石油可交换债券也是一种相对稳定的投资品种，具有相对较高的收益和较低的风险。

中石油可交换债券的发行条件和转换规则等具体内容，通常会在债券的发行说明书中详细说明。投资者在购买可交换债券前，需要仔细阅读发行说明书，了解债券的详细情况，以便做出明智的投资决策。

总的来说，中石油可交换债券是一种相对稳定且具有较高收益的投资品种，对于寻求稳定收益的投资者来说是一个不错的选择。同时，中石油集团通过发行可交换债券，可以筹集资金，扩大业务规模，进一步提高市场竞争力。

英文对照：

What Are the EB Issues by CNPC?

The EB issues by CNPC stand for the exchangeable bonds issued by China National Petroleum Corporation (CNPC), a large oil and chemical enterprise in mainland China. These bonds allow bondholders to exchange their bonds for other securities of CNPC, such as shares or preferred stocks, under specified conditions in the future.

The issuance of exchangeable bonds by CNPC is an effective financing method for the company, which helps it raise funds, expand business scale, and improve market competitiveness. At the same time, these bonds are also a relatively stable investment option for investors, offering relatively high yields and low risks.

The specific terms and conversion rules of the exchangeable bonds issued by CNPC are usually detailed in the bond's offering prospectus. Investors need to carefully read the offering prospectus and understand the detailed information of the bonds before making informed investment decisions.

Overall, the exchangeable bonds issued by CNPC are a relatively stable and high-yielding investment option for investors seeking stable returns. At the same time, through the issuance of exchangeable bonds, CNPC can raise funds, expand business scale, and further improve its market competitiveness.