Therefore, all the coastal countries confront many problem, suchas how to determine the new legal status of the Caspian Sea, how to delimit theboundary, how to lay the petroleum pipeline, how to protect ecology etc.

• 因此,重新确定里海法律地位、里海划分、油气管线铺设及生态保护等问题成为环里海国家共同面临的课题。