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单词
hardness of water
释义
hardness of water
Encyclopedia
理学
环境分析
释
hardness of water
水的硬度
度量水中钙离子（Ca2+）、镁离子（Mg2+）浓度的水质指标。
理学
环境分析
释
hardness of water
水硬度
度量水中钙离子、镁离子浓度的水质指标。虽然其他金属离子如铁离子、亚铁离子、锰离子、铝离子、锶离子、锌离子等也会产生硬度，但产生硬度的比例较小。
Chemistry
＞无机化学＞无机化学基本概念与无机化合物＞释义
hardness of water
水的硬度
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re-capture
recapture
recapture of low energy electron
recasting
recategorialization
reccurrent point
receding galaxy
receding object
receding star
receding trajectory
receding wave
receding wave, retrogressive wave
receipt
receipt and invoice-checking
receipt collect service
receipt of an official document
Receivable Account Management
receivable premium
receivables turnover ratio
received word
receive imperial edict
receive operating characteristic
receive operating characteristic; relative operating characteristic (ROC)
receiver
receiver autonomous integrity monitoring
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