什么是数据分发服务？Data Distribute Service 起有什么作用？

淘气小猪

<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: Verdana; mso-fareast-font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><strong>DDS</strong></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana;">
        </span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: Verdana; mso-fareast-font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">Data Distribute Service </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana;">数据分发服务起什么作用？谢谢。</span>