And the application and trends of RoF technology,such as in 4G wireless access system,road vehicle communication,and indoor coverage of signal system,are introduced.是什么意思_And the application and trends of RoF technology,such as in 4G wireless access system,road vehicle communication,and indoor coverage of signal system,are introduced.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句