发布时间:2025-01-18 12:00:13
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有限元材料库的参数为:45号钢密度7890kg/m3,泊松比0.269,杨氏模量209000GP.
电流怎么计算比如我有一个800w的电机电压是220v如何计算电流如何选择空开
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