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Prepayment System for water supply or gas card and Wireless Intelligent meter for Said System
Prepayment System for water supply or gas card and Wireless Intelligent meter for Said System
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机译:供水或煤气卡预付费系统和所述系统的无线智能电表
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摘要
We describe a system for Supplying Water, gas or by Prepaid Wireless Smart Card. The present Invention also relates to a two-way meter designed to electronically record the consumption of water or gas.
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