• 2022-05-31
    如图密闭容器,左测压管内为水银,右测压管内为水,测压管上部均为绝对真空,左侧测压管读数为20cm,则右侧测压管读数为https://p.ananas.chaoxing.com/star3/origin/bb00c56e41facc24c1359db0030108d4.jpg