April brought the first flush of grass.
四月野草初茂。感情激发；兴奋。
The first flush toilet was invented in England.
第一个抽水马桶是在英国发明的。
In addition, more nitrogen absorbed by the unit mass small particles to a certain degree weakens the first flush of TN.
此外，单位质量的小颗粒含有更多氮也在一定程度上削弱了TN的初期冲刷效应。
The process of pollutant overflow from the JXB sewer system and the event mean concentrations(EMCs) of overflows in Shanghai were studied, and the first flush effects were discussed.
为此，重点研究了上海中心城区某合流制排水区域JXB系统雨天污染物溢流的出流过程和污染物的事件平均浓度，并探讨了溢流污染物的初期效应。
Results showed that, at the beginning of downfall, the maximum ratio of first flush pollutants load to total pollutants load is 97.29%, which of average rain is 81.71 %, of small rain is 41.38%.
结果显示：大雨初期污染负荷在总污染负荷中的比例最大达到97.29%，中雨初期污染负荷在总污染负荷中的比例最大达到81.71%，小雨初期污染负荷在总污染负荷中的比例最大达到41.38%。
Results showed that, at the beginning of downfall, the maximum ratio of first flush pollutants load to total pollutants load is 97.29%, which of average rain is 81.71 %, of small rain is 41.38%.
结果显示：大雨初期污染负荷在总污染负荷中的比例最大达到97.29%，中雨初期污染负荷在总污染负荷中的比例最大达到81.71%，小雨初期污染负荷在总污染负荷中的比例最大达到41.38%。
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