垆土，读音为lú tǔ，汉语词语，意思是指黑色坚硬而质粗不粘的土壤。
土娄土、黑垆土脲酶活性与时间及土壤缓冲量之间的关系为二元线性回归方程。
The equation among Lou soil and Heilu soil urease activity and time and their buffering values is quadratic linear regression equation.
黑垆土是我国西北黄土侵蚀地区主要的地带性土类，也是一种古老的耕种土壤。
The dark loessial soil (Heilutu) is not only a main zonal soil group in the loess plateau of northwestern China, but an ancient cultivated soil.
结果表明三号坑兵马俑样品与秦始皇陵附近的垆土关系密切，与黄土关系稍远。
The results show that the raw material of terracotta warriors and horses in pit No. 3 are closed to loam soil layer nearby Qin Shihuang's Mausoleum, but little far from loess layers.
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