钢芯铝纹线的温度线膨胀系数E为钢芯铝绞线温度升髙1℃时单位长度的伸长值,因此与以下()因素有关。A.钢丝的弹性系数和线膨胀系数;B.铝线的弹性系数...

作者: rantiku 人气: - 评论: 0
问题 钢芯铝纹线的温度线膨胀系数E为钢芯铝绞线温度升髙1℃时单位长度的伸长值, 因此与以下()因素有关。
选项 A.钢丝的弹性系数和线膨胀系数; B.铝线的弹性系数和线膨胀系教; C.铝线和钢丝的拉断强度; D.铝钢截面比.
答案 ABD
解析

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