以下为句子列表:
英文: Abstract: A method was put forward for the detection of the fatigue cracks at the thread roots of a drill pipe by using ultrasonic wave.The specific detection probes were designed.Simulated cracks were detected.The results show that the probes can effecti
中文: 文摘:钻杆螺纹根部疲劳裂纹是钻杆钻井服役中产生的常见缺陷类型,是钻杆螺纹发生断裂的重要根源.本文介绍了钻杆螺纹疲劳裂纹超声检测原理,设计了专用超声检测探头和检测装置,给出了检测试验结果,证明了钻杆螺纹疲劳裂纹超声检测的可行性和实用性.
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英文: Besides being the most sophisticated laboratory on the seas, the science vessel boasts the tallest drilling derrick at 112 meters above the waterline and a drill pipe that is 9.5 kilometers long—22 times the height of the Empire State Building.
中文: 地球号除了是海面上最精密的仪器外,它还架起了世界最高的钻探铁架塔,高出海平面112公尺,钻管有9.5公里长(约是台北101大楼高度的19倍)。
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