研究开发了用超声法探测结构物水下裂缝的方法。
Untrasonic pulse method was developed to explore the cracks of structures under water.
声发射技术已经应用于金属和混凝土结构中，作为探测内部裂缝的一种无损检测方法。
Acoustic emission (AE) technique has been applied to metallic and concrete structures as a nondestructive testing (NDT) method for detection of internal cracks.
声发射技术已经应用于金属和混凝土结构中，作为探测内部裂缝的一种无损检测方法。
Acoustic emission (AE) technique has been applied to metallic and concrete structures as a nondestructive testing (NDT) method for detection of internal cracks.
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