The velocity and attenuation coefficient were measured in the under water acoustic laboratory.
在水声实验室进行原位测量实验，得到了声速和声衰减的数据。
A five-storey laboratory wing boasts acoustic Chambers for bat research, an insectarium, LABS for studying ant and bee behaviour, spectroscopy and microscope rooms.
五层楼的实验室侧翼有用于蝙蝠研究的声学室、一个昆虫饲养室、用于研究蚂蚁和蜜蜂行为的实验室、光谱学室和显微镜室。
The ray approach is adopted to study the acoustic field in theory, and the ultrasonic experiment has been carried out in laboratory to model the underwater waveguide.
理论上采用射线近似方法分析了时间反转声场特性，实验上在实验室内开展了水下波导的超声模拟实验。
Apollo 11 'also for the laboratory conditions: This house functions as architecture workshop, recording studio and rehearsal room acoustic and electric music.
“阿波罗11号”还可以提供各种实验室的条件：例如建筑车间、录音棚、声原及电子音乐排练室等等。
A model was constructed in laboratory to simulate the acoustic emission pipeline leak detection.
在实验室条件下，建立了压力管道泄漏的声发射检测模型。
Applying laboratory acoustic emission Technology, in the light of specific requirements and conditions of coal mine rock sound monitor, this peper has developed a set of system for rock sound monitor.
本文介绍了应用实验室声发射测量技术结合煤矿地音监测的特殊要求和条件研制的矿山地音监测系统。
Acoustic velocities of tap water and polymer solution were studied using ultrasonic-pulse reflection method in the laboratory. Polymer density and apparent viscosity were measured.
采用脉冲反射法在实验室条件下对自来水和不同浓度聚合物溶液的声速进行了测量研究，经测量得到了聚合物溶液的密度、表观粘度。
Acoustics and vibration - Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Part 2: dynamic stiffness of elastic supports for translatory motion - Direct method.
声学和振动。弹性件振动声学传输性能的实验室测量。第2部分：平移运动用弹性支架的动态劲度。直接法。
Abstract: the simulation of acoustic emission signal processing of pressure pipeline crack micro leakage with the localization of the leaking source was carried out under the laboratory condition.
摘要：在实验室的条件下模拟压力管道裂纹微泄漏源的声发射信号处理与泄漏源定位。
For the development of new-technic underwater acoustic detection equipment, the State Key Laboratory of Ocean Acoustics needs to test the dynamic data of the underwater acoustic sensor.
海洋声学国家级重点实验室为了研制开发高新技术水声产品，需要对水声传感器的动态数据进行测试。
In this paper, two new methods of determining in-situ stresses of rock masses in laboratory, acoustic emission method and analysis of typical points of stress-strain curves are investigated.
本文研究了实验室内测定岩体地应力的两种新方法——声发射法和应力应变曲线特征点分析法。
The bottom boundary layer under cnoidal waves was studied by using Acoustic Doppler Velocimeter(ADV) technique in a laboratory flume.
通过波浪水槽试验，利用ADV测量椭圆余弦波作用下不同底床情况，垂线上各点的瞬时流速。
The bottom boundary layer under cnoidal waves was studied by using Acoustic Doppler Velocimeter(ADV) technique in a laboratory flume.
通过波浪水槽试验，利用ADV测量椭圆余弦波作用下不同底床情况，垂线上各点的瞬时流速。
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