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[水文]总硬度
1、franklinite hardness───弗兰克林硬度
2、hardness black───黑色硬度
3、shore hardness───肖氏硬度；回跳硬度；萧氏硬度
4、schist hardness───片岩硬度
5、total───vi.合计；vt.总数达；adj.全部的；完全的；整个的；n.(Total)人名；(法、德)托塔尔；n.总数，合计
6、hardness tester───硬度试验机；硬度测定仪
7、hardness───n.[物]硬度；坚硬；困难；冷酷
8、durometer hardness───[力]计示硬度
9、brinell hardness───布里涅耳硬度；勃氏硬度；白氏硬度；布氏硬度
1、For measuring the basicity, calcium stiffness and total hardness, a new successively titrating way is recommended.───为工业循环冷却水中碱度、钙硬和总硬度的测定推荐了一种连续滴定的新方法。
2、Testing the Total Hardness of Water with the Spectrophotometric Determination Method───分光光度法测定水的总硬度
3、Research on fast measuring methods of determining basicity, calcium stiffness and total hardness on cyclic cooling water───循环冷却水中碱度、钙和总硬快速测定法研究
4、abstract: Objective To know the influencing factors for total hardness of homemade wells water in a district of Beijing.───目的了解北京某区浅层自备水井中总硬度含量的影响因素。
5、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。
6、The uncertainty of measurement for the determination of total hardness of drinking water by EDTA titration method was evaluated.───对乙二胺四乙酸二钠滴定法测定生活饮用水总硬度的测量不确定度进行评定。
7、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。
8、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。
9、total hardness of 12 (German degrees), suitable for irrigation, industrial water Most of potable standard.───总硬度为12（德国度），适合灌溉、工业用水，大部分符合饮用标准。
1、For measuring the basicity , calcium stiffness and total hardness, a new successively titrating way is recommended.
2、Making use of the cause and effect diagram to analyse the sources and influences of uncertainty in determination of total hardness in water by EDTA titrimetric method was introduced.