1.
Sounds are classified into two kinds: sonic and ultrasonic.
声波分为两类，即普通声波与超声波。
2.
noiseless ultrasonic washer
无噪声超声波清洗器
3.
sonic comparator
声波比较[比长]仪
4.
ultrasonic generator
超声波振荡器超声波发生器
5.
An audio(sound) wave is a one-dimensional acoustic(pressure) wave.
声波是一维的声学（气压）波。
6.
Study on Propagation Characteristics of Acoustic Wave in SAW Devices;
声表面波器件中声波传播特性的研究
7.
Ultrasonic Density Meter Design Based on Ultrasonic Echo Attenuation Theory
基于超声波回波衰减理论的超声波浓度计设计
8.
Broadband: A band of light wave or sound wave with a wide range of frequencies.
阔波段:频率范围广的一段光波或声波。
9.
To repeat(a sound) by the reflection of sound waves from a surface.
发出回声表面反射声波而重复的声音
10.
portable ultrasonic thickness meter
携带式超声波测厚仪
11.
automatic ultrasonic testing device
自动超声波探伤装置
12.
real-time ultrasonic particle monitor
实时超声波杂质监测仪
13.
ultrasonic examination of urogenital system
泌尿生殖系超声波检查
14.
distributes sound waves evenly.
能均匀传播声波的介质。
15.
vibrates to receive or produce sound waves.
振动以接收或产生声波。
16.
a sound wave that is transmitted via air.
通过空气传播的声波。
17.
sound surface wave band pass filter
声表面波带通滤波器
18.
sound surface wave band rejection filter
声表面波带阻滤波器