Copper plates are imported from Japan,pure silver ingots for plating from Switzerland,and argentic salt and other chemicals from Germany.
采用日本进口铜,用瑞条,西德监及化工原料等等。
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The third objective, efficient design, involved sandwiching the nanostructured bismuth telluride between two copper plates and then enclosing the upper plate (the one coated with the light-absorbing oxides) and the bismuth telluride in a vacuum.
第三个目标是高效的设计,它涉及到把纳米级的碲化铋夹在两薄之间然后把位于上方的薄(这个薄被覆盖上了吸收光线的氧化物)和碲化铋封入一个真空内。