把产品分别从1米、1.2米、1.5米处掉落，每个高度重复做10次实验.
Drop the product at the heights of 1 meter, 1.2 meters and 1.5 meters respectively, and repeat this test for 10 times at each height.
希望可以帮到你
望采纳
把产品分别从1米、1.2米、1.5米处掉落，每个高度重复做10次实验.
Drop the product at the heights of 1 meter, 1.2 meters and 1.5 meters respectively, and repeat this test for 10 times at each height.
希望可以帮到你
望采纳
