Lub chaw kho dej phwj ntawm Xihu Paj Lag Luam hauv Pearl River yog qhov chaw kho dej phwj zoo hauv cheeb tsam, uas ua lub luag haujlwm tseem ceeb hauv kev ua dej huv.Meters xws li Dissolved Oxygen Meter, Turbidity Meter, Ultrasonic Level Gauge, thiab lwm yam yog siv rau ntawm qhov chaw hauv cov khoom siv, pab txhawb lawv lub zog rau kev kho dej phwj tuaj.