虽然保留了屋盖结构，但是碎石铺砌的房顶替换成常规屋顶，利用了铅锡镀不锈钢材料。
While the roof structure was retained, the ballast roofing was replaced with standing seam, terne coated stainless steel.
研究了化学镀铅锡合金过程中各影响因素对镀层的组成和厚度的影响。
Effects of conditions of electroless plating of Pb Sn alloy on the composition and thickness of the coating were studied.
研究了镀铅泡沫碳化矽集流体的结构对铅酸蓄电池极板的设计参数、正极活性物质利用率的影响。
The influence of structure design of Pb-plated reticulated SiC current collector on the plate design parameters and utilization efficiency of PAM of lead-acid batteries was studied.
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