directional
🇬🇧/dəˈrekʃənl; daɪˈrekʃənl/ 🇺🇸/dəˈrekʃənlˌdaɪˈrekʃənl/📚 15797 38If something such as a radio antenna, microphone, or loudspeaker is directional, it works most effectively in one direction. (广播天线、麦克风或扬声器)定向型的
adjective [原级]方向的
Unless he was equipped with a directional microphone, he was out of earshot.
除非给他配备一个定向扬声器，否则谁也听不见他。
noun [具体名词]定向型的
Jets of compressed air gave the aircraft lateral and directional stability.
压缩气体喷流从侧面和正面稳定了机身。
单词造句: