adj. soniferous
二楼传来的歌声 Songs from the Second Floor
可伸缩的传声器吊杆 telescopic microphone boom
远处传来的声音 a distant sound
木材的传声性 acoustical conductivity of wood
传声器的 microphonic
测量传声器的规范 Specification for measurement microphones
空气传播的噪声 airborne noise emission
声波传播的速度 velocity of sound
声速传播的测定 Determination of sound speed propagation
对此许多大企业人士认为公众的这种态度是由于广告宣传不够造成的，只要加大广告宣传声势，就会扭转局面。
In response to the poll, many businessmen argue that this public attitude is due to the inadequacy of their advertising and can be cured by stepping up their advertising campaigns.
新音乐厅的传声效果极佳。
凯利：你的著作展示了每一种新的通讯发明，如非洲的传声鼓、第一台信号电报装置等，它们曾激发了万分美好和极度恐怖的两种预言。
Kelly: Your book shows that each new communication invention—the talking drums of Africa, the first semaphore telegraphs—inspired predictions of both utopian rhapsody and dire terror.
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