Low-frequency characteristic of ultrasound reflection spectrum from adhesively bonded aluminum plates
等厚铝板粘接件超声反射频谱的低频特征
Research on the Single Surface Test Method of Ultrasonic Waves Reflection on Interface of Bond Quality between Steel and Concrete;
超声反射法单面检测钢—混凝土粘结界面质量的研究
pulsed echo ultrasonoscope
回波反射式超声诊断仪
Cannizzaro Reaction of Aromatic Aldehydes under Ultrasound;
超声辐射下芳香醛的Cannizzaro反应
Studies on the Michael Reaction under Ultrasound Irradiation;
超声辐射在迈克尔反应中的应用研究
Study on the Characters of Ultrasonic Pulse Field Based on the Means of Reflection by Small Ball
基于小球反射法的超声脉冲波声场特性研究
Inversion of Elastic Modulus of Thin Plate Using Acoustic Pressure Transmitting Coefficient Spectrum
应用超声声压透射系数谱反演薄板的弹性模量
Studies on the Knoevenagel Reaction and Pinacol Coupling Reaction Under Ultrasonic Irradiation;
超声波辐射下，Knoevenagel反应和片呐醇合成反应的研究
Synthesis of cis and trans-2,6-diphenyl-1,4-diselenafulvenes under ultrasound conditions
超声辐射下顺、反2，6-二苯基1，4-二硒富烯的合成
Studies of Reactions for Drug Synthesis in the Presence of Transition Metal under Ultrasound Irradiation;
超声辐射下过渡金属参与的药物合成反应研究
Applications of Ultrasound Irradiation in Some Condensations;
超声辐射在一些缩合反应中的应用研究
Studies on the Cyclocondensations under Ultrasound Irradiation;
超声辐射在环化缩合反应中的应用研究
Studies on the Condensation and Esterification under Microwave or Ultrasound Irradiation;
微波或超声波辐射下缩合和酯化反应的研究
The Identification on Reflection Waveform of 61° and 45° Defect by Ultrasonic Testing
超声波检测中61°和45°缺陷反射波形的识别
ULTRASOUND COMPUTER TOMOGRAPHY IN REFLECTIVE MODE OVER CIRCULAR ARC PATH AND ITS EXPERIMENTAL STUDY
沿圆弧形路径积分的反射式超声层析成像方法及实验研究
Preliminary Studies on Ultrasonics in Cardiological Diagnosis:Ⅰ.Experimental Observations on Cardiac Echo Waves
超声波对心脏疾病诊断研究的初步报告 Ⅰ,心波群反射的实验研究
An Application Study on Reflex Wave and Ultrasonic Testing Technology used in Collapsible Loess Engineering;
反射波和超声波检测技术在砼桩基工程检测中的应用研究
Aromatic Aldehydes Using Mg-K10-MgCl-H O under Ultrasound Irradiation;
超声辐射下Mg-K-10-MgCl_2-H_2O体系中芳香醛的还原偶联反应