Fibrebundle testing is different from single fibre measurement, not only in testing methods and instruments, but in the results obtained.
束纤维实验与单纤维实验存在差别,不仅测试方法和仪器有所不同,而且所测得的结果也有差异。
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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 fibrebundle.