This sophisticated toner not only restores the skin's natural pH balance after cleansing but also prepares the skin to be nourished and moisturized.

此超护配方不只使清洁后的肌肤恢复均衡的酸碱值，而且让肌肤做好准备接受滋润。

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This straw-coloured fluid serves as the Blood's transport medium, helps maintain Blood pressure, distributes Body heat, and maintains the pH Balance in the Bloodstream and Body.

人血浆为草黄色，其功能有作为血液运输的介质、帮助维持血压、分配身体热能和保持血液和身体的酸碱值平衡。

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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

In addition, the kidney controls the composition of your body of many important ions, sodium bicarbonate which is important in pH balance, potassium.

此外肾脏还能控制,体内很多重要离子的浓度,例如碳酸氢钠,它对于酸碱平衡十分重要,还有钾离子

耶鲁公开课 - 生物医学工程探索课程节选

The solution (pun intended) involved tacking sodium dithionite and hydro-chloride onto the antibiotic, making it into a water-soluble salt. (Drugs prepared as hydrochlorides are commonplace.) To keep the chemicals from oxidizing, Adams tested 50 different agents, such as citric acid and ascorbic acid, and played with various ratios until he got the right pH balance.

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