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沥青延度的测量长度一般取决于沥青样品的性质以及实际使用情况。在标准锥入法中，一般取锥头直径的一半作为测量长度，而在标准拉伸法中，则取样品的长度一半作为测量长度。不同的沥青类型和不同的使用环境也会对测量长度产生影响。漏气是自动馏程仪常见的故障之一，它会导致馏分不准确，影响实验结果。漏气的原因可能是密封件老化、松动或损坏，也可能是馏炉、冷凝器等部件的连接不紧。解决漏气问
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另外还有万能电机。万能电机是一种可
