以下为句子列表：
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 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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英文: A new method was built to determine the POV of powdered oils by broking the wall with ultrasonic and then extracting the oil to determine the POV.
中文: 摘要建立了一种简单、重复性好的超声波破壁提油测定粉末油脂中油脂过氧化值的新方法。
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英文: A two-dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks: parallel to the surface, 450 oblique angle to the surface, and quarter-circle.
中文: 摘要建立了无限长板的具有吸收边界的二维平面应变有限元模型，在研究了脉冲超声波在无限长板中传播的基础上，对板中平行于表面的裂纹、与表面成45°的斜裂纹和四分之一圆周弧形裂纹三种情况的脉冲超声波散射进行了重点研究。
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英文: A two-stage adaptive noise cancellation algorithm for ultrasonic nondestructive testing of oil pipeline is studied in this paper.
中文: 摘要针对石油管道缺陷超声检测信号的噪声消除问题，研究了一种两级自适应噪声消除算法。
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