高炉炉缸的侵蚀和炉缸内铁水流动的状态密切相关，铁水流动对炉缸炉底的冲刷是炉缸侵蚀的重要原因。
The erosion of the hearth has a close relationship with the state of liquids flow in the hearth of blast furnace.
迄今，近岸水域建构筑物的局部冲刷深度的估算均假定局部冲刷前后为平床，没有考虑常见、广布的近岸沙波底形。
Up till now, local scour depth estimation in the nearshore architectures are assumed that whenever the seabed is flat, which not considered the common bed form: sand waves.
孔底沉渣少，孔壁受泥浆影响和冲刷小，钻孔质量优秀率高，能够满足各种类型的基桩要求。
It produces little settlements at the bottom, less disturbance and erosion of mud to the walls. It provides a high rate of quality boreholes and meets requirements of various foundation piles.
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