资料来源 : pyDict

防水接头

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Water joint \Wa"ter joint`\ (Arch.)
   A joint in a stone pavement where the stones are left
   slightly higher than elsewhere, the rest of the surface being
   sunken or dished. The raised surface is intended to prevent
   the settling of water in the joints.