This paper focuses on the environmental acoustic effect simulation and related technologies,and an environmental acoustic effect simulation system based on acoustic measurement modeling method is developed.
研究了环境声效仿真及其相关技术,设计并实现了一种基于声学测量建模的环境声效仿真系统。
This paper presents the definition and application of average sound velocity of HY1200 sound velocity profiler and the correction method and formula for the sound velocity data with average sound velocity.
介绍了HY1200声速剖面仪平均声速的定义及应用,以及用平均声速进行测深仪声速改正数的方法和公式。
The formula of average pressure and the mean difference of pressure are presented as function of frequency and phase;it is known that uniform distribution of pressure amplitude can be obtained by the sets of values of frequency and phase.
声波的频率及相位影响三频声场的均匀性,通过对平均声压与声压均方差参数分析可知,频率及相位的不同取值会同时影响声波总能量与均匀性,可以通过取合适的参数实现声场均匀性。
Variation of sound velocity of upper water in the northern South China Sea
南海北部海区上层水体平均声速场的变化
After hydrogen injecting,firstly,a combustion flow pattern developed in the combustion chamber with the flow velocity being supersonic on average.
注入氢后,首先在燃烧室内形成平均流速是超声速的燃烧流动。
average sound absorption coefficient
平均吸声系数,平均吸声率
mean avoiding speed
平均避碰速度平均规避速度
and the average flow velocity of rising tide is generally bigger than that of ebb tide.
涨潮平均流速一般大于落潮平均流速。
If the average acoustic velocity of the rock is known, then it is possible to calculate the depth D to the interface.
如果岩石的平均声波速度为已知，那么就可以计算出界面的埋深。
Numerical Analysis of Effects of Flow Speed on Structural Vibration and Acoustic Radiation of Plates in Mean Flow;
平均流流速对板振动声辐射特性影响的数值计算研究
Integrating-averaging sound level meters
GB/T17181-1997积分平均声级计
VASCAR (Visual Average Speed Computer and Recorder)
电脑平均车速记录器
points of mean axial fluid velocity
平均轴向流体速度点
average angular velocity of main shaft of machinery
机械主轴的平均角速度
mean fully developed braking deceleration MFDD
充分发出的平均减速度
The average speed was only 15 kilome-ters.
平均时速仅15公里。
The Fusion of Passive Sonar Data Detected with Well-Distributed Circle Sonar-Array
均匀圆平面声阵被动声探测数据融合
The speed exceeds the average speed by a factor of 3.5.
该速度超过平均速度两倍半。
supersonic turbo jet
超声速透平喷气发动机
Sound calculation method of piston sound source geometric average sound pressure
活塞型声源几何平均声压的声强计算方法
Adaptive Equalization in High Speed Underwater Acoustic Communication System;
高速水声通信系统中的信道均衡技术