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| 表面损伤 | |||
| 表面缺陷; 表面疵点; 外部缺陷; 表面疵点 (The tubes are examined for surface defects by visual and magnetic crack-detection techniques. 使用肉眼和磁力探伤技术对钢管表面缺陷进行检查。); ★ 表面微缺陷 | |||
| 表面疵病 | |||
| 表面缺陷［疵病］ | |||
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| 表面缺陷 | |||
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surface defect : 23 Phrasen in 7 Thematiken |
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