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Pre-paid system and method of supplying water or gas through a wireless smart card and the meter system for this
Pre-paid system and method of supplying water or gas through a wireless smart card and the meter system for this
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机译:为此,通过无线智能卡提供水或气的预付费系统和方法以及仪表系统
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摘要
Process for the supply of water or gas through a wireless smart card subscription system and the pre-paid meter system. The invention also relates to the bidirectional meter specially designed for the electronic recording of the consumption of water or gas.
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