The U-shaped bolts embedded in concrete beam are split after using a period of time.
铁路混凝土桥梁人行道上的U型螺栓，在使用一段时期后容易出现断裂病害。
With so section-shaped split strip, the quality of both spiral-formation and SAW processes are negatively influenced.
分析了各种净料截面产生的机理及截面形成后在生产过程中影响螺旋成型及埋弧焊接质量的因素。
With so section-shaped split strip, the quality of both spiral-formation and SAW processes are negatively influenced.
分析了各种净料截面产生的机理及截面形成后在生产过程中影响螺旋成型及埋弧焊接质量的因素。
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