any agent (person or animal or microorganism) that carries and transmits a disease
set used to broadcast radio or tv signals
造句
Various PA linearization techniques have been adopted to improve linearity and power efficiency of wireless transmitters. 于是多種不同功率放大器的線性化技術被采用來改善無線發射機的線性度及效率。
Radio transmitters are allowed for reasons of safety and for communication between the team leader and his pilots. 無線電發射機之允許，是基于安全的理由，及領隊和他的飛行員之間的溝通。