用total hardness造句子，“total hardness”造句
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Measuring total hardness of water by flow injection spectrophotometry
The total hardness, sulfate, chloride and consumption oxygen quantity in mixing water , underground water and surface water existed significant difference(P
Comparison test of total hardness of the ground water quality by robust statistical techniques
Results There is a positive correlation between the con centration of water fluoride and that of the total alkalinity and a negative cor relation between the water fluoride and the total hardness and water iodine.
Distribution and evolution trend of total hardness of shallow groundwater in plain area of Henan Province
