1)total hardness of water水总硬度
英文短句/例句
1.Studies on the Abnormal Phenomenon in Determination of the Hardness of Industrial Water;对工业用水总硬度测定异常现象的研究
2.Study on Determination Of Total Hardness Of Water With ICP-AES应用ICP-AES技术测定水总硬度的方法研究
3.Distribution and evolution trend of total hardness of shallow groundwater in plain area of Henan Province河南省平原地区浅层地下水总硬度的分布及演化趋势
4.Measuring total hardness of water by flow injection spectrophotometry流动注射分光光度法测定水的总硬度
5.Experimental Study on Sulfate and Haroness Removal from Mine Waste Water with High Degree of Mineralization;高矿化度矿井水硫酸盐、总硬度去除的实验研究
6.Evaluation of Uncertainty for Determination of Total Hardness in Water by EDTA TitrationEDTA滴定法测定水中总硬度的不确定度评定
7.Experimental Study on the Removal Effect of Sulfate Radical and Hardness in Mine Wastewater;矿井水中硫酸根及总硬度去除效果的试验研究
8.The Characteristics of Groundwater Chemical and Numerical Simulation of Total Hardness in the Suburb of Beijing北京市郊区地下水化学特征及总硬度数值模拟
9.Comparison test of total hardness of the ground water quality by robust statistical techniques稳健统计法在水质总硬度检测比对中的应用
10.Total Hardness and Trace Element Content of Drinking Water Produced by the Waterworks if Towns in South Jiangsu Ares苏锡常地区建制镇水厂出厂水中总硬度及微量元素调查
11.Evaluating and Expressing the Uncertainty on Determination of Total Hardness in WaterEDTA法测定水中总硬度测量不确定度的评定与表示
12.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.结果南水北调中线供水区水氟含量与水的硬度呈负相关，与水的总碱度、碘含量呈正相关。
13.Correlation Study on Total Hardness of Drinking Water with Some Anions in Beijing Area北京地区饮水中总硬度与几种阴离子相关关系的研究
14.Effects of Water pH Value and Total Hardness on Glycine max (L.) Merr. Seed Germination and Its Sprout Guality水的pH值和总硬度对黑豆种子萌发及其芽苗菜品质的影响
15.This process removes the water hardness.这一工艺去除水的硬度。
16.The degree of hardness or the water hardness you will get to know from your responsible waterwork.水质硬度可以通过水质测试仪测得，上述水硬度单位为德国度。
17.This was a blow to President Chen Shui-bian, who favoured Mr Su and a tougher stance towards China.此番谢的胜出对于挺苏并且对大陆态度强硬的陈水扁“总统”而言是一次重创。
18.The president has adopted a hardline stance against abortion.总统在堕胎问题上持强硬的反对态度。
相关短句/例句
total hardness of water水的总硬度
1.Capillary burette-measuring pipette micro titration for rapid determination of total hardness of water;毛细滴管-吸量管数滴微型滴定法现场快速测定水的总硬度
3)total hardness of the ground water quality水质总硬度
1.Comparison test of total hardness of the ground water quality by robust statistical techniques稳健统计法在水质总硬度检测比对中的应用
4)total hardness总硬度;(水的)总硬度
5)total hardness总硬度
1.Micro weight titration for determining the total hardness of industrial circulating cooling water;微型称量滴定法测定工业循环冷却水的总硬度
2.Evaluating and Expressing the Uncertainty on Determination of Total Hardness in WaterEDTA法测定水中总硬度测量不确定度的评定与表示
3.The total hardness of the standard water samples GSBZ50007-8 and GBW(E)080112 were determined by atomic absorption spectrophotometry.采用原子吸收分光光度法检测GSBZ50007-88、GBW(E)080112两个水标准样品的总硬度。
6)total hardness总硬度(林)
延伸阅读
总硬度分子式：CAS号：性质：水中所含钙离子和镁离子的总浓度。使用高硬度的水会使洗涤剂消耗量增加，使传热设备结垢，并降低产品质量，因此工业用水有时需要进行软化处理。总硬度分碳酸盐硬度和非碳酸盐硬度。碳酸盐硬度又称暂时硬度(temporary hardness)，主要是由钙和镁的重碳酸盐和碳酸盐引起的硬度，用煮沸的方法可以去除。非碳酸盐硬度又称永久性硬度(permanent hardness)，主要是由钙和镁的硫酸盐、氯化物和硝酸盐等引起的硬度，用煮沸方法不能去除。硬度的单位为mmol/L或mg/L(需注明按CaCO3计或按CaO计)。中国生活饮用水卫生标准规定总硬度的限值为450mg/L(按CaCO3计)。
