研究人员可以在钠β-氧化铝处于液态时对它进行操作, 这样就很容易将它精确地涂抹在物体表面, 而这正是印刷电路板所要求的工艺模式.
The researchers worked with sodium beta-alumina in its liquid form, which enabled them to spread it easily onto a surface in precisely the pattern required for a printed circuit.
印制电路板天线制造的印刷电路板的精确尺寸和蚀刻区，通常董事会地产一和十平方厘米的需要。
The PC-board antenna is fabricated as a precisely dimensioned and etched area of the printed-circuit board, and usually requires between one- and ten-square centimeters of the board real estate.
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