If a Home Depot opens up next to your hardware store, let it sell the gas barbecues while you refill people's propane tanks.
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尽管如此，现在很多人家里都能使用天然气或储气罐，因此，可以考虑将来把这些燃料用于家庭燃料电池。
Many people do have access to natural gas or propane tanks at their houses, however, so it is likely that these fuels will be used to power future home fuel cells.
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