本文推导了按重量加权的长度变异系数与纤维束截面积分布函数之间的关系。
The relationship is derived in this article between the weighted average of length variation coefficient and the distribution function of the cross-section area of fibre bundle.
采用椭圆形纤维束截面假设，详细研究了经纱纤维束在织物表面与内部的不同。
The difference between the outer and the inner weft is analyzed by adopting the assumption of ellipse fibers.
快速铁路是束热处理铝合金型材中空截面，给高强度下的扭转和挠度应力。
The Speedy Rail beam is a heat-treated aluminium alloy profile with hollow cross-sections that give it high strength under torsion and deflection stresses.
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