英语词汇“calcium hardness”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	calcium hardness
释义	calcium hardness calcium hardness [′kal·sē·əm ‚härd·nəs] (chemistry) Presence of calcium ions in water, from dissolved carbonates and bicarbonates; treated in boiler water by introducing sodium phosphate.
随便看	auroral boundary & ionization sensor auroral caps auroral electrojet auroral electrojet index lower auroral forms auroral frequency auroral imaging observatory auroral ionospheric mapper auroral ionospheric remote sensor auroral isochasm auroral kilometric radiation auroral line aurorally auroral oval auroral poles auroral propagation auroral region auroral storm auroral substorm auroral westward flow channel auroral zone auroral zone blackout aurora macro language auroraphobia aurora photography experiment

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