退水堰 的英文怎麼說
中文拼音 [tuìshuǐyàn]
退水堰
英文
waste weir-
Through the water quality analysis on the cod tp, tn in the irrigation water and drainage water in a model experimental field, the regulation and its influence on environmental water pollution by the drainage water was also studied
通過對蕭山聞堰鎮某二季晚稻試驗田灌溉用水和農田排水的逐次記錄和取樣分析,研究了農田退水中cod 、 tp 、 tn的排放量和排放濃度變化,以及農田退水對本地水環境的影響。
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