搞不懂为什么说力矩是力与位失的叉乘,又说大小是力与力臂的乘积,区别是什么啊? 知乎 Template




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tomski搞不懂为什么说力矩是力与位失的叉乘,又说大小是力与力臂的乘积,区别是什么啊? 知乎 coloring