1.
defect detecting instrument, ultrasonic, for welded jonints or for industrial materials

超声缺陷检查器,检查焊接接头或工业材料用
2.
Identify the Defect of Bearing Vibration and Noise with Wavelet Packet Energy Spectrum;

基于小波能量谱的轴承振动噪声缺陷辨识方法
3.
The Identifaction of Defects wave and Non-defects wave in Forging’s Ultrasonic Testing

锻件超声波探伤中缺陷波和伪缺陷波的识别
4.
In the process of ultrasonic inspection, one of the difficulty is defect qualitative problem.
超声波检测中,缺陷定性是检测的难点。
5.
Research on the Detection of Damage and Interior Defects in Concrete by Means of Ultrasonic;
超声探测混凝土损伤和内部缺陷研究
6.
Welding Defect Ultrasonic Test and Idetification Based on LabVIEW;

基于LabVIEW的焊缝缺陷超声检测与识别
7.
Research on Characterization of Weld Defect Based on Ultrasonic TOFD;

基于超声TOFD法的焊缝缺陷表征研究
8.
Nondestructive Evaluation of Pinhole Defect of Cast Aluminum Alloy by Ultrasonic Method

铸造铝合金针孔缺陷的超声无损评价
9.
Study on Non-linear Acoustics Characterization of Cracks in Aluminum Alloy Plate

铝合金板材缺陷非线性声学特性研究
10.
EXPERIMENTAL STUDY ON DAMAGE DIAGNOSIS OF CONCRETE INTERIOR DEFECTS WITH ACOUSTIC EMISSION
混凝土缺陷损伤声发射技术试验研究
11.
Ultrasonic Detection of Partial Discharge on Typical Defects in GIS

GIS中典型缺陷局部放电的超声波检测
12.
Flaw Testing of Welding Butt by Ultrasonic Guided Waves

超声导波检测对接焊缝缺陷试验研究
13.
The influence of defect filling fraction on the energy band in 2D point defect phononic crystals
二维点缺陷声子晶体中缺陷填充率对能带的影响
14.
amplifies sound and is worn to compensate for poor hearing.

带上能够扩大声音以弥补听力差的缺陷。
15.
Ultrasonic inspecting method for macro-structure and imperfection of stee

GB/T7736-1987钢的低倍组织及缺陷超声波检验法
16.
Three methods for determining the height of defects were given.

并介绍了三种缺陷自身高度的超声测试方法。
17.
Mechanisms of Laser Generated Surface Acoustic Wave and Its Application in the Surface Defect Inspection;
激光声表面波及其探测表面缺陷的机理研究
18.
Ultrasonic Quantitative Testing of Wood Hole-Defect Based on Energy Method;

基于能量法木材孔洞缺陷的超声定量检测研究