同义词: head voice head tone
head address register[计] 磁头地址寄存器;磁头地址缓存器
同义词:head voicehead tone
N(名词) the high register of the human voice, in which the vibrations of sung notes are felt in the head 头音; 上音域,头脑在这里可感知唱歌说话的回声