每个晶体结构由相间的二氧化硅层和高分子聚合材料层组成，相同材料层之间的间距与声子的波长相匹配。
Each crystal structure consists of alternating layers of silicon dioxide and a polymer material, so that the spacing between similar layers matches the wavelength of phonons.
分析现有模板匹配算法存在问题的基础上，提出一种基于可变形模板的声图像识别新方法。
On the basis of deformable template matching, a new approach based on the deformable template is presented.
介绍了采用级联技术制作的1023位声表面波匹配滤波器的工作原理、设计方法和实验结果。
This paper describes the operating principle, design method and experimental results of 1023 bits SAW matched filter using cascade technology.
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。
Experimental results show that low frequency pulse compression and channel match method can be used in shallow water sound channel to improve the SNR.
当受试者观看每张图片时他们将同时听到一个相匹配的声音，例如当看一个猫时，他们会听到一声猫叫。
When the subjects saw each image, they also heard a matching noise-for instance, on seeing a cat, they heard a meow.
目的探讨新型造影剂声诺维及实时灰阶造影匹配成像技术对早孕不全流产的诊断价值。
Objective To investigate the role of contrast agent SonoVue and real time gray-scale contrast tuned imaging (CnTI) technology in the diagnosis of incomplete abortion.
本文利用UA0914声强耦合腔产生的同一声场条件，测量声强测量系统两通道之间的传递函数，进而对两通道间的相位不匹配误差进行修正。
The phase mismatch errors are corrected by measuring the transfer function between two channels at the same acoustic field provided with B&KUA0914 inside in-tensity coupler.
而采用的单元十分匹配，尤其是中高频段响应平滑，柔和动听，用于室内或户外广播扩声均可。
But adoption of the unit match very much, and particularly is an inside the high segment respond to smooth, soft and moving, used for the indoors or outdoor broadcast the voice to can be all.
而采用的单元十分匹配，尤其是中高频段响应平滑，柔和动听，用于室内或户外广播扩声均可。
But adoption of the unit match very much, and particularly is an inside the high segment respond to smooth, soft and moving, used for the indoors or outdoor broadcast the voice to can be all.
应用推荐