应用声超声及超声穿透试验对钢板上有无煤负载两种情况进行了对比研究。
A comparison study on two situations, with and without coal load on a steel plate, has been carried out by using audio and ultrasonic frequency.
当番茄植株的茎被切断时，一小时内记录了25次超声波疼痛声，同时记录了15次烟草植物的超声波疼痛声。
When the tomato plants' stems were cut, 25 ultrasonic pain sounds were recorded in an hour, and at the same time, 15 ultrasonic pain sounds were recorded from the tobacco plants.
作为一个成像工具，声透镜冲击了超声波的显像，因为声脉冲可以更加紧密地聚焦，可以很容易地重新定位。
As an imaging tool, the acoustic lens beats ultrasound imaging because the sound pulses can be focused much more tightly and can be easily repositioned.
换言之，基本上超声波的传播声束极窄，这非常有利于将声波集中至指定地点，但对实际听力则无所助益。
In other words, ultrasound essentially travels in a very narrow beam — this makes it great for focusing the waves toward a desired area, but not for actual aural comprehension.
本文主要是对用电磁声换能器，通过测量超声波幅度变化来测量铁磁性材料内部应力的方法进行实验研究。
The stress in ferromagnetic materials was studied by measuring the change of the amplitude of ultrasonic wave with electromagnetic acoustic transducers.
由于其驱动信号是可以由结构简单的叉指电极激发的声表面波，因而克服了一般的超声马达结构复杂，制造困难以及小型化困难等缺点。
Because its driving signal is surface acoustic wave, thus it overcomes the shortcomings of complex structure, difficult fabrication and miniaturization in normal ultrasonic motor.
采用D-S证据理论，提出了利用声激励和超声探头检测金属与非金属粘接状态的融合方法，并进行了验证分析。
This paper Studies and analyzes on data fusion for Ultrasonic adhesive detecting by D-S theory of evidence.
本文报道了近年来我国在生物组织超声特性——传播速度、衰减、吸收、反射、散射和非线性声参量方面的研究进展情况。
We reported the main progress made in China in recent years of the study of ultrasonic tissue characterization-propagation velocity, attenuation, scattering and nonlinearity parameter, etc.
详细介绍了在斜面焊口超声波探伤中采用声程调节扫描比例进行缺陷定位的计算方法，并给出了计算公式。
Method of calculation of defect site by ultrasonic inspection of indined plane welding has been described in detail, and formula have also been proved.
根据声化学的有关原理初步探索了超声场对于纳米级轻质碳酸钙合成碳化过程的影响。
Based on the theory of sonochemistry, the influence of ultrasound on the carbonation process of the synthesis of nanometer light calcium carbonate is studied initiatively.
在超声波声化条件下，研究确定的低浓度酸性除油除锈清洗介质可在较低温度下，快速有效地去除钢丝表面的油污、铁锈和磷化膜；
The acidic medium could remove oil and rust at relatively low temperatures and in a short time due to the synergistic effect of ultrasonic and chemistry.
通过对声辐射理论的研究，获得超声无触点支承的理论依据。
The theory basis of ultrasonic contactless support is achieved by studying the sound radiant theory.
采用D-S证据理论，提出了利用声激励和超声探头检测金属与非金属粘接状态的融合方法，并进行了验证分析。实验证明，提出的方法是可行的。
This paper Studies and analyzes on data fusion for Ultrasonic adhesive detecting by D-S theory of evidence. The result shows that the fusion method is feasible.
而在SB3200型超声波清洗器中，声空化仅需10分钟，并且催化活性也相对提高。
When it was treated in SB3200-type ultrasonic cleaner, only 10 minutes would be needed.
给出了超声马达的新进展—声表面波马达。
New development of ultrasonic motor, surface acoustic wave motor is introduced.
对于声化学反应机理，现在统一的解释就是超声的声空化作用。
As for chemical reaction mechanism, unified explanation now is the act of ultrasound cavitation.
介绍了一种新型的超声电机——声表面波直线电机。
This paper focus on one type of ultrasonic motors, the surface acoustic wave linear motor.
目的研究凹球面超声换能器的声焦域在高声强和媒质有较大衰减情况下，其形状和几何位置的变化。
Objective the variations of the site and shape of focal region for a concave spherical ultrasound transducer in the case of high sound intensity and stronger attenuation were studied.
与传统的超声波探头相比，超声相控阵探头可以实现电子控制下的声束平移、偏转与动态聚焦。
Compared with traditional ultrasonic probe, ultrasonic phased array probe can realize transition, deflection and dynamic focusing of acoustic beam under electronic control.
数字声束形成技术可以提高超声成像设备的对比分辨力、横向和纵向分辨力。
The digital beam forming technique can improve the contrast, lateral and axial resolution of ultrasound imaging equipment.
采用数字扫描变换技术和数字声束形成技术的超声诊断设备被称为全数字超声诊断设备。
The ultrasound diagnostic equipment using the technologies of digital scan conversion and digital beam forming is defined as the digital ultrasound diagnostic equipment.
主要介绍超声波探伤设备中，以单片机为核心实现超声波探伤中的声程补偿问题。
This paper introduces the chip microprocessor achieves the problem of compensation for acoustic distance of the ultrasonic flaw detection in the ultrasonic flaw detection device.
介绍采用数字信号处理的超声端点反射回波声程测量裂纹高度的方法研究和结果。
The measurement of crack height by ultrasonic edge peak echo method and digital signal processing was described, and the results were given.
超声耦合剂；透声媒质；卫生要求；生物学评价。
Ultrasonic coupling agent; Acoustic transmission medium; Health requirements; Biological evaluation.
超声波传感器是实现声电转换的装置，所以，又称为超声波换能器。
Ultrasonic sensor is an instrument which transform sound into electricity, therefore, it is also called ultrasonic wave transducer.
综述声化学中超声波技术在食品工业的应用状况。
This paper is mainly summarized the application of ultrasonic techniques of sonochemistry in food industry.
并从超声的机械振动效应、声空化效应等方面分析了声化学的作用机理。
The mechanism of sonochemical actions were discussed in view of mechanical fluctuation and cavitation effect of ultrasound.
并从超声的机械振动效应、声空化效应等方面分析了声化学的作用机理。
The mechanism of sonochemical actions were discussed in view of mechanical fluctuation and cavitation effect of ultrasound.
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