1, find the nearest storage machine, generally in the property or natural gas company.
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2, look at the bottom of the ring storage machine, you will find that there is a long slit, that is, the gas card.
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3. Put the triangle number of the gas card up, enter the loop storage machine, wait for a moment, the loop storage opportunity will automatically recharge the gas card.
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4, it will show how many days of gas capacity recharge, after the card out, remember to press the clear button to clear their information. Use the card to top up the gas meter when you get back.