... bed particle size 底沙粒度 bed sediment size 底沙粒度 median bed material size 底质粒径中值 ...
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median bed sediment size 底质粒径中值
The occurrence of the lower limit of bed material size is attributed to the grain size composition of incoming sediment and the fining mechanism.
研究认为河床质调整极限是由来沙组成及河床质细化机制决定的。
With decreasing of peat granule size, the content of TN and TP was increasing obviously in peat sediment of river bed-flood land and valley depression land.
河床-河漫滩型和谷底洼地型泥炭沉积物中总氮和总磷含量随着泥炭粒级的减小而明显增加。
Its main work includes the Yellow river sediment cross-section tests, river bed surface quality sampling and particle size distribution analysis and so on.
其主要工作内容包括黄河河道断面淤积测验，河道表层河床质取样及颗粒级配分析等工作。
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