With reduction of engine load, sound velocity of DME decreases.
随着负荷的下降，DME的音速下降，且下降的速率远比柴油的大。
The sound velocity is one of the most important acoustic parameter in ocean sonar.
声速是海洋声呐测量中最重要的声学参数之一。
The experiment error of sound velocity measuring is very small with lissajous figures.
用李萨如图形法测量声速误差较小。
Simple feeble detonation assumption was adopted in dealing with the sound velocity surface.
在对声速面进行处理时采用简单弱爆轰假设。
The results show that sound velocity and sound attenuation is correlated with types of sediment.
结果表明：实验室和现场所得的沉积物声速、声衰减与沉积物的类型密切相关。
In the hydrographic practice, the real depth may be more than the depth of sound velocity profile.
在实施声速剖面测量时，由于某些原因可能存在实际水深大于声速剖面深度的情况。
So the correction of sound velocity must be considered carefully to get a better position accuracy.
为保证较高的定位精度，必须进行声线修正。
The variation of sound velocity was more obvious than quality loss. It was concluded that ultrasonic techno…
声速变化比质量损失变化明显，说明超声波法是一种检测混凝土冻融损伤的简单可靠的方法。
This paper describes the performance principle and system structure of a direct-survey sound velocity profiler.
简要阐述了直接测量式声速剖面仪的测量原理及水下机探头的体系结构；
The programs adopt stratified constant-gradient method to approximately describe the sound velocity distribution.
程序中采用分层等梯度近似来描述海洋中的声速分布。
The flowmeter includes a thickness measurement function and can effectively measure the sound velocity of fluids.
该流量计包括厚度测量功能，能有效测量液体声速。
The feasibility for the sound velocity and unloading path under high pressure by using VISAR diagnostic is validated.
本工作验证了带窗VISAR技术测量材料高压声速及卸载路径的可行性。
Some problems in the traditional experiment of measuring sound velocity by using the resonant pipe device are analyzed.
分析了传统的用共鸣管测量声速实验中存在的问题，提出了两种减小误差的新的改进方法。
Finally, at long ranges, the blast wave becomes essentially a sound wave and its velocity approaches ambient sound velocity.
最后，在很远的距离处，爆震波基本上就变成一种声波，其速度已接近周围的声速。
The relation between sound velocity and syntonic frequency is gained by analyzing the ultrasound transmitting in thin material.
对薄型材料中超声波传播规律进行分析，得到材料声速与共振频率的关系。
The phased-array Doppler log has several advantages, such as small size of array and no need of compensation for sound velocity.
相控阵多普勒计程仪具有基阵体积小，且无需迸行声速补偿等优点。
Sing-around method for sound velocity measurement have found wide acceptance because it is simple in circuitry and high in accuracy.
环鸣测量声速法具有电路简单、使用方便、测量精度高等优点，已广泛地应用。
The effects of thermoclines depth, thickness and sound velocity change on searching submarine probability were discussed, and lastly.
结合潜艇利用跃变层规避主动声纳探测的战术背景，对跃变层对主动声纳的搜潜概率影响进行了研究。
The equation of displacement wave and sound pressure wave in the sound velocity experiment are derived. And their relation is analyzed.
推导了声速测定实验中合成声场的位移波动方程、声压波动方程以及两者之间的关系。
As an example, the distribution of the detonation pressure, density, particle and sound velocity along the detonation profile are given for TNT.
以TNT为例进行了计算，给出了其爆轰波内压力、密度、流速和声速等参数的分布。
Result is indicated: Sound velocity grad and seawater depth loss be qualified for in seawater is the major factor weighing to allocation accuracy.
结果表明：海水中的声速梯度以及海水深度失配是对定位精度产生影响的主要因素。
Through field survey, this paper illustrates there are two factors (motion sensor compensation and sound velocity) mainly effect acquired data quality.
经过野外调查，本文例证了两种要素(运动传感器补偿和声速)影响获得数据质量。
The influence of the size of sound lens and the sound velocity in sound lens material and crude oil and rock stratum on the sphere of action is studied.
分析了声透镜尺寸及材料中的声速、原油及岩层中的声速对其传播距离的影响。
The accuracy of depth reduction has been improving with the continuous accumulation of hydrographic data and widely application of sound velocity profiler.
海域水文资料的不断丰富和声速仪的广泛使用，推动了水深声速改正精度的提高。
In this paper, the principle and primary results of measure ultrasonic sound velocity and attenuation coefficient by ultrasonic syntonic method are introduced.
本文介绍利用超声共振法测量声速和声衰减系数的原理及自来水和乙醇的测量结果。
An acoustic transducer system for use in the measurement of longitudinal sound velocity in a cement sample that is maintained at high temperature and pressure.
一种用于测量保存在高温高压下的水泥样品中的纵向声速的声换能器系统。
The change of sound velocity with pressure, dryness degree, void-fraction, and phase-transition coefficient are analyzed. Some important conclusions are derived.
分析了两相流体中音速随压力、干度、汽隙率、相变系数等的变化关系，并从中得出了一些重要的结论。
Results Compared with sound velocity and attenuation, the backscatter coefficient could reflect the structural change of biological tissue. The high frequency ul…
结果高频背向散射系数较声速、声衰减更能反映组织结构的变化，高频超声图像具有高的分辨率。
Measuring sound velocity is an important physical experiment. It is possible to know the acoustical characteristics of measured medium by measuring sound velocity.
测量声速是大学物理实验中一个比较重要的实验，通过对声速的测量可以了解被测介质的声学特性。
Measuring sound velocity is an important physical experiment. It is possible to know the acoustical characteristics of measured medium by measuring sound velocity.
测量声速是大学物理实验中一个比较重要的实验，通过对声速的测量可以了解被测介质的声学特性。
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