在线翻译

随着光纤数字通信系统传输速率不断提高和传输距离不断增长，.. 翻译

原文（简体中文）：

随着光纤数字通信系统传输速率不断提高和传输距离不断增长，PMD成为限制高速数字通信的关键因素，我们必须组织有效测量更多：https://www.bmcx.com/ ，以了解光缆链路实际PMD状况，为通信系统设计提供依据。

翻译结果（英语）1：

Pmd become a key factor to limit the high-speed digital communications optical fiber communication system transmission rates continue to increase and the transmission distance is growing, we must organize effective measurement cable link pmd 更多：https://www.bmcx.com/ , provide the basis for the design of communication systems.

翻译结果（英语）2：

Transfer rate increasing as optical digital communication system and transmission distances increased, PMD becomes key factor in limiting high speed digital communications 更多：https://www.bmcx.com/ , we must organize an effective measure to understand actual PMD cable link, provide the basis for communication systems design.

翻译结果（英语）3：

Along with the digital communication system optical fiber transmission rate continuously improve and the transmission distance is constantly increasing, PMD become limit high speed digital communication key factors, we must organize effective measurement 更多：https://www.bmcx.com/ , in order to understand the fibre links actual PMD status, as the communication system design provides the basis.

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