您要查找的是不是：
- 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
- electromagnetic acoustical instrument 电磁声学仪器
- electrostatic acoustical instrument 静电声学仪器
- An acoustic instrument. 非电传音乐器
- The stethoscope is a medical instrument. 听诊器是一种医疗器械。
- This instrument monitors the patient's heartbeats. 这台仪器监听病人的心跳。
- The amplitudes of the partials produced by most acoustic instruments vary through their duration. 由大多数声学设备产生的分音振幅在声音持续其间变化。
- an acoustical instrument consisting of a sounding box with one string and a movable bridge,used to study musical tones 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
- The album comes with a rougher sound using a lot of drums, completed by industrial patterns, acoustic instruments, and again English and German vocals. 这张专辑带有一个粗糙的使用了很多鼓的声音，工业模式，原声乐器完成，并再次英语和德语演唱。
- The king signed the instrument of abdication. 国王签署了逊位的文告。
- Soulful cello by Jaques Morelenbaum and lush vocal harmonies by Kenny Loggins add to this stunning album of acoustic instrumental compositions. 深情的大提琴由雅克Morelenbaum和茂密的和声由Kenny Loggins（肯尼洛金斯）融入到这张令人惊叹的纯音乐专辑中。
- A similar board used as a percussion instrument. 敲击板用作打击乐器的一种类似的板
- This scientific instrument suffered severely. 这部科学仪器受到严重损坏。
- Language is an instrument for communication. 语言是交际的手段。
- The compass is an instrument of navigation. 罗盘是航行仪器。
- The bagpipe is a sweet musical instrument. 风笛是一种听起来很悦耳的乐器。
- This system can set up acoustical resonances. 这种系统能产生共鸣。
- The viola is a stringed instrument. 中提琴是一种弦乐器。
- The evolution steps of electro acoustic instrument 电乐器的演进足迹
- electromagnetic acoustic instrument 电磁声学仪器
