zhè ge / jié liú fá / kě yǐ / kòng zhì / shuǐ guǎn / de / liú liàng / ān zhuāng / shí / yào / zhù yì / fāng xiàng这个节流阀可以控制水管的流量,安装时要注意方向。This throttle can control the flow rate of the water pipe; pay attention to the direction when installing it.