Because the changing of source water, obvious variety of total degree hardness index about the new source water caused the difference on residents' taste.

结果显示因供水水源的更换，新供水系统总硬度指标显著变化，导致口感差异；

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The experiment results showed that the maize anti-grinded hardness index could be used as an needed damping quantity index to get the best technological effects in maize hulling and degerming.

通过实验证实，玉米的抗粉碎硬度指数可作为反映玉米最佳去皮脱胚效果所需着水量的一个指标。

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Then, all the quantum chemical descriptors including hardness index, softness index, and electronegativity are made to be correlated with the parameters of anesthetic toxicity of organic pollutants.

同时得到相应的量子化学参数，如：分子最高占有轨道能、分子最低空轨道能、分子偶极矩和分子体积等，并将这些理化参数与有机污染物的麻醉毒性参数相关联。

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