If spilt on the floor, it wouldn't eat the concrete and since the medium is noncorrosive, you can use cheaper materials to build the components of the batteries, like the tanks and pumps.
即便电解溶液洒在地面上也不会侵蚀混凝土，因为这一介质不具有腐蚀性，所以也可以采用更廉价的材料来构成电池部件，如储罐和泵。
Another line of research is to explore the use of photovoltaic (solar cell) materials other than silicon - such as iron oxide, which might be even cheaper to produce.
研究的另一个方向是挖掘光电池的潜在利用价值，比如制造成本更低的氧化铁。
Another line of research is to explore the use of photovoltaic (solar cell) materials other than silicon - such as iron oxide, which might be even cheaper to produce.
研究的另一个方向是挖掘光电池的潜在利用价值，比如制造成本更低的氧化铁。
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