每个对象都有重量.但该中心的重量并不总是在中间的对象.如果一个对象的顶部是重于它的底部,它将很容易摔倒.我们说它的重心是高.但如果底部越重,它不会很容易就会.然后我们说它的重心很低.看第一张图片.这个空盒子必...
英语翻译Every object has weight.But the center of its weight is
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