XT Rack-Mount Timers are ideal for broadcast stations, theatres, studios, and all facilities that use standard 19 inch rack-mount instrumentation.是什么意思_XT Rack-Mount Timers are ideal for broadcast stations, theatres, studios, and all facilities that use standard 19 inch rack-mount instrumentation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句