This is the main cause of the steep roofs should be scoured. Season the submerged rock lying in a State of being buoyant and the weight of it is not enough to keep the peace of the Earth is above. Rock at the top almost lost Fulcrum began to shift and make portions status in rock being pushed below the floating slip. In addition, the ground in buoyant State also reduces the stress effect in France in the face of sliding has identified or are anticipated, so the cut resistance of rock falling down and sliding that can arise.
đang được dịch, vui lòng đợi..