以下为句子列表：
英文: 1969 The first trial flight of supersonic airliner Concorde took place at Bristol.
中文: 协和超音速飞机在布里斯托尔首次试飞。
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英文: 1976 Concorde airliner entered supersonic service with simultaneous take-offs from London to Bahrain and Paris to Rio de Janeiro.
中文: 协和超音速班机投入使用，从伦敦至巴林和从巴黎至里约热内卢的飞机同时起飞。
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英文: 436 The welds passed the examination of radiographic test (ultrasonic inspection, magnetic testing).
中文: 这焊缝通过射线透视检查（超声波探伤、磁力探伤）合格。
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英文: A device for converting energy form one form to another. In relation to computers, the term is applied to a read/write head, to detector of sector marks in a magnetic disc system, and to electronic/sonic pulse converters of delay line memory.
中文: 把能量从一种形式转换成另一种形式的装置。在与计算机有关时，这个术语用在磁盘系统中的读／写磁头、扇面标记的检测上，以及用在延迟线存储器的电子或声波脉冲变换器上。
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英文: A formula is proposed for calculating the sand content of different size in the case of matching particle size of sand, thus obtaining the correlation between ultrasonic attenuation and density of solid particles in the pulp, as well as particle size.
中文: 提出了在矿砂粒径尺寸级配情况下的不同粒径时的矿砂含量的公式，并由此得到了超声波衰减与矿浆中固体颗粒浓度、粒度之间的关系。
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