In recording, an arrangement that will synchronize separate sound and picture tracks. The simplest method is through the use of a synchronous drive motor connecting both picture viewer and sound reproducer.是什么意思_In recording, an arrangement that will synchronize separate sound and picture tracks. The simplest method is through the use of a synchronous drive motor connecting both picture viewer and sound reproducer.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句