研究采用铸渗法制备三元硼化物硬质合金覆层钢基材料。
The preparation of ternary boride hard alloy cladding layer on steel substrate is studied.
展馆的红色外墙釆用特殊的耐风化钢覆层材料，这种材料在澳大利亚的城市中应用非常广泛。
The color of the pavilion's red facade is made from the use of a special kind of steel, which is commonly used in Australia cities.
该工艺可使不锈钢覆层很薄，从而降低材料成本。
The process makes stainless steel cladding very thin to reduce material cost.
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