国产精品成人a区在线观看麻图片_亚洲AV调教捆绑一区二区美女_国产精品无码一级毛片_性8sex有你亚洲无码_色欲精品一区二区日韩Av

1, can be recorded according to the water consumption and electronic display

2. The water consumption is controlled according to the agreement, and the water fee calculation of the tiered water price is automatically completed. The water data storage function can be carried out

3. Data transfer and transaction settlement are carried out by IC card, which makes the transaction convenient and the calculation more accurate.