Sediment density is one of main physical characteristics of river sediment.
泥沙密度是河流泥沙的主要物理特性之一。
The density distribution and main mineral composition of the deposit in the Yangtze River at Fuling area are analysed.
本文介绍了长江涪陵段沉积物的密度分布及主要矿物组成；
The light oils in Panyu Lower Uplift of Pearl River Mouth Basin are characterized by low density less than 0.
珠江口盆地番禺低隆起轻质原油的密度小于0。
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