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| 11. | This paper introduces the application of the combination of the ultrasonic inspection with wide frequency |
| 实践表明,采用宽频带窄脉冲超声检测与金相检验相结合的方法可有效地检测仪表金属功能材料的低倍缺陷。 |
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| 12. | According the medium-term and terminal obstetric gestation to taking ultrasonic inspection for the sake |
| 方法按产科中、晚期妊娠进行常规超声检查,筛查胎儿畸形,对具有高风险孕妇应从孕12w开始进行超声定期随访。 |
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| 13. | In the process of ultrasonic inspection, one of the difficulty is defect qualitative problem. |
| 超声波检测中,缺陷定性是检测的难点。 |
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| 14. | The ultrasonic inspection method for the surface of bearing steel (cold drawn rounds) |
| GB/T8361-1987轴承钢冷拉圆钢表面超声波探伤方法 |
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| 15. | Standard practice for fabrication and control of steel reference blocks used in ultrasonic inspection |
| 超声波检验用钢对比试块的制作与校验方法 |
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| 16. | Methods for ultrasonic inspection and quality classification of welded girth butt joints in oil and gas |
| 石油天然气钢质管道对接焊缝超声波探伤及质量分级 |
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| 17. | Methods of ultrasonic inspection and result classification of circumferential butt welds in steel pipes |
| GB/T15830-1995钢制管道对接环焊缝超声波探伤方法和检验结果的分级 |
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| 18. | has been put forward, and concrete measures for preventing failure of high temperature bolts, such as ultrasonic |
| 对此，提出了限制运行周期和紧固次数，加强对螺栓超声波探伤和表面探伤等防止高温螺栓失效的具体措施。 |
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