Sound pulse technique is often used in the underwater acoustic measurement, but it has transients, so it can not be used in low frequencies.
脉冲声技术是一种很常用的水声测量技术，但由于脉冲声存在着瞬态过程，严重影响了它在低频下的使用。
This paper presents a theoretical analysis of the reflection of a sound pulse by the plane interface between the air and an idealized porous medium.
本文在理论上分析球面脉冲声波在空气和理想的多孔性媒质界面上的反射问题。
This paper studies the determination of datum station with GPS and the computation problems of the sound pulse signal received by the datum station of echo pulse receiver under water.
研究了用GPS测定基阵坐标，分析了水听器基阵所接收到的声脉冲信号的处理。
This paper presents a study of the reflection of sound pulse from porous material in the ease that the impulse sound source and receiver are located on a line perpendicular to the surface of material.
本文提出当脉冲声源和接收点在同一条垂直于材料表面的直线上时，声脉冲从多孔材料反射的研究。
The old choppy and clunky pre-swing rhythmic feel is still there in the pulse and banjo sound, but this was a new notion of how jazz composition might evolve.
在这首曲子的弦乐的跳跃中，虽然我们仍能感受到摇摆音乐前期爵士乐在节奏上的生涩滞落，但此时其作曲的新走向已略显初端。
Experimental results show that low frequency pulse compression and channel match method can be used in shallow water sound channel to improve the SNR.
实验表明，脉冲压缩可有效增加浅海低频声脉冲的传输距离，信道匹配可用于消除多途对脉冲信号检测信噪比的影响。
Frequency, current, voltage and pulse width of successive wave and intermittent wave were similar. Frequency, current, voltage and pulse width of sound electric wave changed continuously.
连续波与断续波（续波）的频率、电流、电压、脉冲宽度均相同，声电波的频率、电流、电压、脉冲宽度均为不断变化的。
In this paper, the interaction between a cw plane wave and a plane pulse travelling with sound speed is considered. Both of them satisfy the homogeneous wave equation.
本文讨论一列平面波与一列平面行波脉冲的声相互作用，显然这两个波不仅都满足波动方程，而且可以用来讨论公共区之外的声散射声问题。
The result is accord with geological sample and sediment chart, so this method can be applied on sediment classification of narrow-band pulse echo sound signal.
分析结果与地质采样结果及海图均吻合，说明本文提出的方法应用于窄带脉冲信号的海底底质分类是适用的。
M sequence signal can be chosen as the receiving deterministic pulse signal when using acoustic vector to determine the direction of the sound source. It possesses favorable anti-multipath capability.
利用矢量水听器接收确知脉冲信号来确定声源方位时，脉冲信号形式可以考虑采用M序列调相信号，具有良好的抗多途效应。
This paper develops a theoretical formula for calculating interfacial noise of vibrating point from its vibratory quantity with pulse semisphere sound source as basic physical model.
本文以脉动半球声源为基本物理模型，推导了由振动量计算振动点的界面噪声的理论公式。
Pulse sound monitor developed by the authors was applied in testing pulse sounds of athletes of different events and levels before training.
运用自研的脉搏声谱检测仪，对不同项目和不同水平的运动员在训练前的脉搏声进行了测试。
This article discusses the research and special usage of a sound and light indicator of a kind of logic pulse probe.
本文介绍了一种声和光指示的瞬间电脉冲检测器的研制及其特殊用途。
A new method to calculate the distribution of sound pressure of a transducer pulse field is proposed. The distribution of sound pressures of transducers with different bandwidths is calculated.
提出了一种计算超声换能器脉冲波声场声压分布的新方法，计算了不同带宽的换能器脉冲波声场声压分布。
For the man sound of body and serene of mind, there is no such thing as bad as weather... Every day has its beauty, and storms which whip the blood, do but make it pulse more vigorously.
身心若是平静安然，就无谓天气好坏，每天都是美好，激发血性的暴风，只会使脉搏跳得更猛烈。
This paper presents the method of designing a acoustic sensor monitoring the shock wave and sound wave along with plasma produced in the process of interaction between short-pulse laser and teeth.
介绍了用于激光和牙齿作用后产生的等离子体监控的声学传感器的设计方法，可用于对激光作用过程的监控。
The field pulse signal forming and width control circuit generates a field pulse signal A with the width being controlled by the accompanying sound electric level.
场脉冲信号形成及宽 度控制电路产生宽度受伴音电平控制的场脉冲信号A。
In the design, in view of the breakdown different form, has studied the sound detection law, the pulse magnetic field law, the audio frequency induction method and so on each method principle.
在设计中，针对故障的不同形式，研究了声测法、脉冲磁场法、音频感应法等各种方法的原理。
This paper describes the major performance and applications of the PFM (pulse frequency modulation) optical fiber transmission equipment for colour TV programs with two accompanying sound channels.
本文叙述PFM彩色电视双伴音传输设备的主要性能和应用。
The standard medical stethoscope (9) can replace the pulse sound sensor (3), and the blood pressure can be measured by human.
可用医用听诊器（9）代替脉搏音传感器（3），人工判断血压。
The standard medical stethoscope (9) can replace the pulse sound sensor (3), and the blood pressure can be measured by human.
可用医用听诊器（9）代替脉搏音传感器（3），人工判断血压。
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