drainage survey meaning in Chinese
水系测量
Examples
- Geochemical drainage survey
水地球化学测量 - The team carried out three drainage surveys and four closed - circuit tv surveys covering extensive areas . dye - tracing was used to track misconnections back to where they originated , and the epd also cracked down on illegal back - lane dishwashing at food stalls and restaurants
负责的队伍进行了三次广泛的渠道调查和四次闭路电视调查，此外并应用色粉测试法追踪误驳污水管的源头，以及打击熟食档和在后巷清洗碗碟的食肆。