Four kinds of amendments can improve soil physical properties. Soil bulk density decreased, soil porosity, permeability coefficient and field capacity increased under treatments.
四种改良剂均能不同程度的改善土壤物理性状，能降低土壤容重，提高土壤总孔隙度，加快渗透速度，增加田间持水量。
After revamping, four kinds of mixed crude oil can be processed without changes in unit capacity and product specification.
结果表明，改造后装置可以加工四种混合原油，并达到原油加工量不变、生产的产品规格也不变的改造目的。
应用推荐