The reductive decomposition method has the advantages over the classic ore melting method with sodium peroxide in analytical accuracy, reproducibility, ease of operation and rate of analysis, etc.
锡矿石试样的还原分解，在测定的准确性、结果的重现性、操作的简易程度以及分析的速度等方面，均优于经典的过氧化钠熔矿方法。
Components of smelting coal and iron ore were got from technical analysis. Effective calorific value of coal, component of reductive gas and smelting heat of ore were calculated from the analysis.
经工业分析测得熔炼煤及矿石成分，并通过计算得到相应有效热值、煤气成分与熔炼热。
Analysis of change of the nutrient concentration in porewater with depth indicates the relation between the oxidative-reductive conditions and the nutrient concentration.
对沉积物中孔隙水营养盐浓度随深度的变化分析，表明了沉积物孔隙水中营养盐浓度变化与氧化还原环境的关系。
Analysis of change of the nutrient concentration in porewater with depth indicates the relation between the oxidative-reductive conditions and the nutrient concentration.
对沉积物中孔隙水营养盐浓度随深度的变化分析，表明了沉积物孔隙水中营养盐浓度变化与氧化还原环境的关系。
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