这项技术的原理是将声音压缩成类似于光的窄束。
The technology works by focusing sound into a narrow beam, just like light.
本文对截面为矩形的窄束给出束强分布的图解法证明，并提出计算束强的精确公式。
This paper gives an an illustrational proof to beam intensity distribution for narrow beam of rectangular cross section, and presents an accurate expression to calculating beam intensity.
本论文将窄角扇束扫描看成是多探头的平行束扫描。
This paper regards narrow fan-beam scan mode as multi-detector parallel beam scan mode.
高能X射线工业CT机的图像重建属窄角扇束扫描方式下的图像重建。
The image reconstruction of industrial X-CT belongs to image reconstruction with narrow fan-beam scan mode.
根据大源渡枢纽施工导流模型试验结果，着重分析了一期施工期间利用束窄后河道泄流及通航的水流条件。
Based on the experimental result of construction river diversion model of Dayuandu, this paper studies the flow condition for navigation and drainage in first construction period.
用束团同步信号触发波形发生器，生成窄脉冲；
Triggered by the in-phase signal, the waveform generator outputs a pulse burst.
目的：评价电子束计算机断层摄影(EBCT)在小儿先天性复杂型主动脉缩窄临床诊断中的价值。
Objective: To evaluate the value of Electron Beam Computed Tomography (EBCT) in diagnosis of pediatric congenital complex aortic coarctation.
本文对工业CT窄角扇束扫描方式下的迭代图像重建算法进行了研究。
In this paper, the author discusses in detail an efficient iterative image reconstruction algorithm in industrial computerized tomography (ICT) with the narrow fan-beam projection.
鱼骨坝束窄了河道过水断面，引起坝体两侧水流流速的增大，坝田内流速则大幅度减小；
Alongside the dike, the flow velocity gets larger, and it is on the contrary in the dike field.
南部的束鹿等凹陷是在深而窄的断槽上发育起来的，聚油有限，且都集中在深断槽区。
The south Shulu etc, depression were developed on the basis of a deep narrow faulted trough with limited oil accumulation and all these accumulations are concentrated in the deep trough region.
在介绍了工业CT的几种扫描方式的基础上 ，较详细地分析了窄角扇束扫描方式下的数据重排方案。
On the basis of introducing several ICT scanning methods, this paper analyses in detail the data-rearranging plan when the method of narrow-angle sector scanning is used.
心动过速可呈窄QRS图形、左束支传导阻滞（LBBB）图形及右束支传导阻滞（RBBB）图形。
The QRS complex, during tachycardia could be in morphology of narrow, left bundle branch block (LBBB) and right bundle branch block(RBBB) with VA dissociation.
心动过速可呈窄QRS图形、左束支传导阻滞（LBBB）图形及右束支传导阻滞（RBBB）图形。
The QRS complex, during tachycardia could be in morphology of narrow, left bundle branch block (LBBB) and right bundle branch block(RBBB) with VA dissociation.
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