国产精品高清资源|成AV人日韩亚洲|最新国产福利导航|影音先锋美女中文字幕爱情网视频|日韩激情三区四区|一区二区在线欧美|亚洲不卡AV中文字幕|久久午夜夜伦|国产日韩一区av|成人动作av网站

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.