total hardness of water 水的总硬度 ; 水总硬度
Total Hardness Test 总硬度测试条
Total Hardness Quant Test Strips 总硬度测试带
groundwater total hardness 地下水总硬度
total hardness of groundwater 地下水的总硬度
total l hardness 总硬度
Uncertain degree is evaluated to adopt EDTA titrimetric law to measure total hardness of water quality.
采用EDTA滴定法测定水质总硬度的测量不确定度评定。
Total hardness and total solids appear positive correlation with nitrate, but no correlation with ammonium.
总硬度和总固体与硝酸盐氮呈显著正相关，与氨氮未表现出相关关系。
Major Inorganic Components: Sodium, potassium, chloride, calcium, magnesium, alkalinity, total hardness, total phosphorus, fluoride, sulphate.
主要无机成分：钠，钾，氯，钙，镁，碱度，总硬度，总磷，氟化物，硫酸盐。
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