求翻译：在二十世纪90年代，OFDM广泛用干各种数字传输和通信中，如移动无线FM信道，高比特率数字用户线系统(HDSL)，不对称数字用户线系统(ADSL)，甚高比特率数字用户线系统HDSI〕，数字音频广播(DAB)系统，数字视频广播(DVB)和HDTV地面传播系统。是什么意思？

In the 1990s, ofdm widely used to dry a variety of digital transmission and communication, such as mobile wireless fm channels, high bit rate digital subscriber line systems (HDSL is more), asymmetric digital subscriber line (adsl), very high bit rate hdsi] of the digital subscriber line systems, di

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In the 1990 of the 20th century, the OFDM in the widely used digital transmission and communications, such as mobile radio FM channels, system-high bit rate digital subscriber line (HDSL), the system of asymmetric digital subscriber line (ADSL), very high bit rate digital subscriber line system HDSI

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