显示组织速度和位移的高时空分辨率的方向，超声束，也可视短期的事件。
Show tissue velocity and displacement in the direction of the ultrasound beam with high temporal resolution, and also visualize short events.
超声束与心肌纤维垂直时ibs、EI值最大，平行时最小，均表现为各向异性。
The values of IBS and EI were maximum when the ultrasound was perpendicular to myofiber and minimum when the ultrasound was parallel to myofiber.
超声流量计是通过检测流体流动对超声束（或超声脉冲）的作用以测量流量的仪表。
Ultrasonic flow meter fluid flow through the detection of ultrasonic beam (or ultrasonic pulse) effect to measure the flow meter.
结果表明：除了非线性强度、吸收外，衍射是另一个影响非线性超声束冲击波形成的重要因素。
The results reveal that besides the nonlinearity and absorption, the diffraction is another important factor that affects the shock formation of an ultrasound beam.
通过用频域方法数值求解KZK方程； 以活塞声场为例，研究了非线性超声束的冲击波形成规律。
The shock formation in a nonlinear ultrasound beam by solving KZK equation using frequency-domain numerical method is investigated.
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.
为了实现了高精度电子束焊缝连续自动检测，开发了针对环形工件的智能超声自动化检测系统。
For the continuous and automatic testing with high precision, we designed an ultrasonic automatic test system for annular work-pieces.
结果表明，超声c扫描技术可实现对结构件的电子束焊焊缝缺陷的定性、定位、定量检测。
It shows that the ultrasonic C-scan technique can not only identifies and locates the defect, but also precisely measures the defect size.
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.
医用超声诊断设备中存在两种声束形成技术。
There are two beamforming techniques in the medical ultrasound diagnostic equipment.
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.
提出了一种利用空气中超声波非线性传播效应制作的、可产生高指向性可听声的新型声束扬声器。
A novel audio beam loudspeaker which based on nonlinear propagation effects of ultrasonic in the air to generate audible sound with high directivity is presented.
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.
本文首次采用碘释放法发现双束脉冲超声辐照的空化产率增强效应。
This treatise first reveals the enhancement of cavitation yield of bi beam ultrasound irradiation.
激光-超声方法是通过测量由流动引起的超声脉冲信号在两束或更多来激光之间传递的时间差实现旋涡场测量的。
Our laser - ultrasonic method is better than existing laser methods for measuring flows. So we use our laser - ultrasonic method to measure the vortex field of the flow.
超声分子束注入深度与加料效率是分子束加料研究中的基本课题。
The fuelling efficiency and injection depth are the fundamental problems of supersonic molecular beam fuelling.
同时，将超声成像和声图像处理技术应用到本系统中，实现了环形电子束焊缝超声检测的自动化。
To realize this automatic test system, not only the newly developed automation technology and ultrasonic signal processing technique, but also the ultrasonic image processing technique was applicated.
目的研究左心室条束的二维超声心动图特征和左心室条束与心脏杂音及室性早搏的关系。
Objective To study the relations between left ventricular band and cardiac murmur or premature ventricular contraction and echocardiographic features.
水射流加工就是其中的一种加工方法，它和新出现的电子束加工，超声波等加工方法被称为特种加工方法。
Waterjet cut is one of the processing methods, it and the emergence of electron beam processing, ultrasonic machining method is called special processing method.
目的：为右心室条束的超声心动图诊断提供形态学基础。
Objective: The purpose of this study is to provide morphological data of right ventricular bands for echocardiography diagnosis.
本文评述超声分子束激光光谱学的进展。
In this article the progress in laser spectroscopy of supersonic molecular beams is discussed.
由超声分子束产生的多原子范德瓦尔斯分子的光谱可以通过红外半导体激光光谱仪进行探测，从而对处于基态和激发态的分子势能进行分析。
Diode laser spectroscopy of van der Waals polyatoms produced in supersonic beams is a source of information on the ground-and excited-state intermolecular potentials.
超声波具有指向性好，在水中衰减小，束射特性优良。
Ultrasonic has a good pointing, the attenuation in water is small, beam radio feature fine.
目的：总结上颌窦提升在材料研究库、牙颌面专用锥形束CT及超声骨刀在临床中的应用等方面的新进展。
OBJECTIVE: To summarize the research progress of materials research, clinical applications of maxillofacial cone CT and ultrasound bone knife in maxillary sinus augmentation.
一种新颖的声束扬声器是捏造的利用超声波在空气中的非线性传播效应，产生声音的高指向性的声音。
A novel audio beam loudspeaker is fabricated by utilizing the nonlinear propagation effects of ultrasonic in the air to generate audible high directivity sound.
本文首先对超声分子束系统中小分子自由基进行了激光诱导荧光(LIF)光谱研究。
In the present thesis, diatomic radicals are investigated by laser-induced-fluorescence (LIF) in the supersonic molecular beam system.
最后指出超声分子束激光光谱学的发展趋势及应用前景。
Finally the trends of laser spectroscopy of supersonic molecular beams and...
本发明还提供了一种能产生两束高频相干超声波的装置。
This invention also provides an installation which can produce two beams of high-frequency interferential supersonic wave.
本发明还提供了一种能产生两束高频相干超声波的装置。
This invention also provides an installation which can produce two beams of high-frequency interferential supersonic wave.
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