Does outer space even rob you of something to which you can anchor a spring?
在外太空中你是否,不再能够固定住弹簧
I tie a spring to my back and I anchor it to the wall and see how much the spring stretches before the two forces balance.
我把弹簧一端系在背后,另一端固定在墙上,观察两个力平衡时弹簧的伸长量
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