发布时间:2025-01-31 17:49:31
如果挂钩后面有胶,则可直接黏在墙上。或者需要在墙上打孔,用膨胀螺丝和螺钉将挂钩固定。
小明买来一个塑料挂衣钩把它的吸盘贴在玻璃餐桌下表面如图所示若大气压强为10x
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