排污地下主管网 (排污地下主管網) páiwū dìxià zhǔguǎn wǎng

páiwū dìxià zhǔguǎn wǎng set phrase underground sewage network
Domain: Computer Science 计算机科学 , Subdomain: , Concept:
Notes: (CC-CEDICT '排污地下主管網')