The HKSR-9001 option board adds dual-link HD-SDI outputs and an extra AUX input port for connectivity to an external audio multiplexing device.是什么意思_The HKSR-9001 option board adds dual-link HD-SDI outputs and an extra AUX input port for connectivity to an external audio multiplexing device.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句