The paper has computed the water requirements for self purification of the stream-channel in the middle and lower reaches of Huifa River according to the point po.
辉发河是松花湖的一个主要污染源,探讨其自净需水量,可有效保护松花湖水资源。
To overcome these disadvantages, the results of frequency analysis of net irrigation requirement are recommended to determine the probability in this paper.
针对这种情况 ,推荐使用对灌区作物净灌溉需水量 (或称缺水量 )进行频率分析。
The values of net water flux(NWF),drug absorption rate constant(K_a) and drug apparent intestinal permeability(P_(app)) by the gravimetry were compared with the ones by phenol red assay.
方法:以长春西汀为模型药物,采用大鼠在体肠单向灌流技术,对重量法和酚红法计算的净水流量值(NWF)、药物吸收速率常数(Ka)和药物表观吸收系数(Papp)进行比较,并对重量法中收集液在密度修正前后的NWF和Papp值进行比较。