adj.听觉的；声学的；音响学的
An acoustical instrument consisting of a sounding box with one string and a movable bridge, used to study musical tones. 测弦器一种由一个带有一根弦和可移动琴马的共鸣箱组成的不用电传音的乐器，用于细察音调
adv.听觉上地；声学上地
