excess surface water 中文意思是什麼
excess surface water
解釋
地面積水-
There are some main problems included surface water pollution, groundwater overdraft, excess fluorine of rural drinking water, deficiency of rural water supply, and low efficiency water use
存在的主要問題是地表水污染嚴重、地下水嚴重超采、農村飲水氟超標和水量不足、水資源浪費仍很嚴重,以及管理手段有待提高等。 -
By using ec membrane material as column packing, double - distilled water as mobile phase, the retention times ( tr " ) are measured with suitable inorganic and organic compound as solutes. 3. complying with the retention times, the partition coefficient of the solute ( ka " ) and the ratio of the surface excess concentration of solute ( ) with the concentration of the parent fraction ( cab ) are calculated
利用物理改性的方法研製了乙基纖維素( ethylcellulose ,簡稱ec )膜材料,並將其作為高效液相色譜柱的固體填料,以高效液相色譜模擬反滲透實驗平衡條件,以水為流動相,選擇合適的無機物和有機物作為溶質,測定乙基纖維素對它們的相對保留時間及平衡分配常數k _ a 。
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