Soil should also be tested for its pH level, a measure of the acid and alkaline balance.

土壤的PH 值也应该测量一下， PH 水平是反映酸碱平衡的量度。

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When made into disinfection solution, its pH value is neutral. It's less corrosive to metal.

本品呈消毒液时的pH值为中性，对金属的腐蚀性小。

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Uranium in groundwater occurred over a wide range of pH and redox conditions because of its association with other compounds.

地下水中含有的铀不在酸碱值和氧化条件之内，是因为其常与其它化合物相连。

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Soil should also be tested for its pH level, a measure of the acid and alkaline balance.

VOA: special.2009.06.09

If I then put it back into its original condition, lower the heat say, temperature back to body temperature and reduce the pH down to seven again, the molecules will re-nature.

假如我把烧杯的温度恢复到初始状态,降低温度,温度降低到体温,将pH值降低到七,这些分子会复性

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Its pH is 3.9--the same acidity as mild vinegar.

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Meanwhile, Uber was trying to perfect its model, employing Ph.

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More than 70 of its 800 employees have Ph.

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