weak twist
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结果表明采用聚酯弱捻长丝织制的几种管状织物厚度、密度、强力与弹性达到了翻衬法管道修复技术的工艺要求。
Through testing and analysing their basic properties, the result proves that their thickness, density, strength and elasticity of polyester filament fabrics can accord with the demand of inversion …
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