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CLOSED-CIRCUIT HOT WATER PIPING SYSTEM CAPABLE TO REDUCE WATER CONSUMPTION AT A LOW COST
CLOSED-CIRCUIT HOT WATER PIPING SYSTEM CAPABLE TO REDUCE WATER CONSUMPTION AT A LOW COST
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机译:能够以低成本降低用水量的闭路热水配管系统
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摘要
A closed-circuit hot water system, in which the water pipes are such designed that an extra pipe is connected to the tank from which the water comes out. In so doing, cold water which stands in the hot water supply pipe returns to the tank.
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