英汉例句

• 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；

• 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。

• 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。

• 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。

• It was approved by metallographic test that the sound velocity measured by the instrument was more accurate. The instrument was easy for operation and could be used to realize automatic control.

  用该仪器进行现场检测并通过金相试验对比，试验证明，用球化率测定仪比用测厚仪和探伤仪测得的声速值要精确，而且操作简单，可实现全过程自动控制。

• A sound velocity measurement platform was built to conduct system calibration and measurement experiment.

  通过构建声速试验平台，进行了系统校準与测量试验。

• 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。

• 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。

• Combined with the calibration method, two methods for the sound ray bending correction in deep sea are developed when the sound velocity profile is known and unknown separately.

  文中结合海底应答器位置校準方法，分别就声速分布已知和未知两种条件开发了深海声线弯曲修正方法。

• It treats the weighted average sound velocity in different mediums as the average sound velocity in the structure, thus the natural frequency of the structure is calculated.

  以声波在各层介质中传播时波速的加权平均值作为构筑物的平均声波波速，计算出结构自振频率。

• 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、原油及巖层中的声速对其传播距离的影响。

• 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。

• 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。

• 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 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。

• 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。

• 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。

• In this work, the line pressure at fuel pump side and at injector side, nozzle needle lift and sound velocity of dimethyl ether (DME) were measured to evaluate DME injection process.

  系统研究了二甲醚(DME)燃料的喷射过程，测试了不同工况下的油管泵端压力及嘴端压力、喷油器针阀升程和油管中燃料的音速。

• 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。

• The principles used in measuring sound velocity by means of resonant interference and phase comparison are analyzed and compared, which are convenient for teaching.

  为了方便教学，对用共振干涉法和相位比较法测定超声声速的原理进行了剖析、比。

• 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。