The aspect of researching longitudinal surface crack is pointed out.

提出了今后研究纵裂纹的方向.

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External defects: undercut , overip , arc pit, gas cavity in surface, crack in surface.

外部缺陷: 咬边 、 焊瘤 、 弧坑 、 表面气孔 、 表面裂纹.

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The crack occurred in silica brick generally includes surface crack and layer crack.

硅砖中裂纹包括表面裂纹和层裂.

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This paper introduces a new kind of product that is used to treat asphalt surface crack.

介绍了一种用于修补沥青路面裂缝的新型产品以及该产品组成材料的技术要求、性能指标、含量等.

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The longitudinal surface crack on thin slab is a serious quality defect casting and rolling process.

薄板坯表面纵裂是连铸连轧生产线上的严重质量缺陷.

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Subsurface inclusion is one of the reasons causing surface crack of rolled steel.

皮下夹杂是造成表面裂纹的原因之一.

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Can increase genuine leather's transverse tear strength, grain surface crack intensity and tensile stretch after using.

使用后可有效增加真皮的抗撕裂强度 、 粒面崩裂强度,还可增加真皮的伸长率.

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The surface crack is the most dangerous among crack defects of oil thimble.

套管裂纹缺陷中最危险的是表面裂纹,可分解成表面周向裂纹和表面轴向裂纹问题.

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