The author introduces a pipe defect locating method by contact type ultrasonic detection — finger oil dipping touching method and analyses the theoretical basis of defect locating by this method.
介绍了钢管接触法超声波探伤缺陷定位方法——手指蘸油触摸法，分析了利用此种方法进行缺陷定位的理论依据。
The reason of defect generation is local spot corrosion due to contact with the corrosive medium in the transportation and storage.
产生缺陷的原因是运输、储存过程中与腐蚀性介质接触造成钢管局部点腐蚀。
According to contact glass level measurement defect, a continuous untouchable monitoring system for glass level is designed with help of advanced CCD technology and image processing technology.
本文针对接触式玻璃液位计的缺点，采用先进的CCD技术和图象处理技术，设计了一种连续的非接触的玻璃液位监测系统。
应用推荐