1.
Test method for bulk acoustic wave attenuation of piezoelectric lithium niobate crystals
GB/T15250-1994压电铌酸锂单晶体声波衰减测试方法
2.
The Fundamental Researches of Computerized Tomography of Ultrasonic Attenuation for Concrete
混凝土超声波衰减层析成像的基础项目研究
3.
Solidification degree of PETN composite explosive would affect ultrasonic attenuation.
介绍泰安混合炸药固化程度对超声波衰减的影响。
4.
Design of Pulp Concentration Measurement System Based on Ultrasonic Attenuation
基于超声波衰减法浆体质量浓度检测系统的设计
5.
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
6.
Method to reduce acoustic attenuation during intravenous myocardial contrast echocardiography
间歇谐波成像克服心肌声学造影中的远程衰减
7.
Acoustic velocity-frequency shift attenuation combined tomography detection technology
声波速度-频移衰减联合层析成像检测技术
8.
sound attenuation
消声器（噪声衰减装置）
9.
Effect of structure and composition on ultrasonic attenuationand velocity of polymer has been studied by pulse-echo method.
用脉冲回波法测定了甲基丙烯酸酯类共聚物的超声衰减与声速。
10.
Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials--Pulse-tube method
GB/T5266-1985水声材料纵波声速和衰减的测量脉冲管法
11.
rotary waveguide variable attenuator
旋转波导可变衰减器
12.
microwave attenuation in clouds and precipitation
云和降水中的微波衰减
13.
Effects of Receiving Direction Angle on Amplitude of Ultrasonic Attenuation Tomography on the Cross Section of logs
超声波在原木横断面衰减成像中接收方向角对振幅的影响
14.
Attenuation of P,S and coda waves in Longtan reservoir region
龙滩水库地区P波、S波和尾波衰减
15.
The optimum design of detector arrays for the attenuation of surface waves and of ambient noise is a complex subject.
为衰减面波和外界噪声作检波器组合的最佳设计是一件复杂的事情。
16.
The nonlinear wave shape degenerates to a sinusoidal wave.
非线性波形衰减成正弦波。
17.
Express the factors resulting in the attenuation of acoustic waves.
请陈述导致超音波衰减的各项因素.
18.
These fluctuations dissipate with height.
这一波动随高度增加而衰减。