BHA, or beta hydroxy acid, is a form of salicylic acid and is used in some topical exfoliants to reverse signs of aging.
或者beta hydroxy acid，是水杨酸的一种，被用在一些局部去角质产品中来扭转老化迹象。
The influence of magnesium hydroxide, zinc oxide and stearic acid on vulcanization behavior, mechanical properties and aging properties of ENR was investigated.
研究了氢氧化镁、氧化锌及硬脂酸对环氧化天然橡胶(enr)硫化特性、硫化胶的力学性能及老化性能的影响。
Anything in the stomach that affects the normal acidity and digestive processes, ranging from infections to acid reflux medicine to aging, may also interfere with B12 absorption, studies suggest.
研究表明，胃中任何影响正常酸度和消化过程的东西，从感染到倒酸药物再到衰老，都可能影响维生素b12的吸收。
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