丝袜福利视频一区,先锋影音中文人妻,手机观看成人AV,天天碰天天摸综合,国产AV美女黄频,五月丁香婷婷综合,久热福利在线视频,亚洲夜夜夜福利导航无广告,久久久精品伦理片

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.