Series 7 should be installed downstream of the water meter and of the water pressure regulator 系列7应该安装在水表和水压力调节器的下游。
Currently the prepaid water meters are mainly card style that is deficient in applying 现行的预付费水表多为卡式水表，其在应用中存在着一定的不足之处。
A design of prepaid water meter that based on infrared remote control is introduced in this thesis 本论文主要介绍了基于红外遥控技术的预付费水表的设计。
A valve box , a valve pillar and a water meter basin shall be of cast iron , synthetic resin , and concrete , etc 阀门箱，阀门柱和水表井应由铸铁，合成树脂和混凝土等构成。
The government enacted regulations to abolish the rider mains system , and help people installed separate water meters free of charge 政府通过废除旁喉条例，并免费为旁喉用户，安装独立水表。
