Nyob rau hauv thaj tsam ntawm Longyan Sewage Treatment Plant nyob rau hauv Nanchuan, Chongqing, Sinomeasure cov dej zoo ntsuam xyuas cov twj paj nruag: pH meter, yaj oxygen, turbidity meter, sludge concentration meter thiab lwm yam twj paj nruag tau ua tiav rau cov txheej txheem dej phwj tuaj, uas zoo heev txhim kho qhov tseeb ntawm Kev ntsuas dej zoo thiab lav kev ua haujlwm siab thiab ruaj khov ntawm kev kho dej phwj tuaj.
