These compounds are soluble in water, and contains the hemiacetal hydroxyl free, so in alkaline solution can reduce silver ions and copper ions.

这些化合物能溶于水，并含有游离的半缩醛羟基，所以在碱溶液中能还原银离子和铜离子。

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Indium was a necessary component of substitutes for the mercury free alkaline zinc manganese battery.

铟是碱性锌锰电池无汞化代汞添加剂必不可少的组分。

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It appears that AQ is still the most cost effective sulphur free accelerator for alkaline pulping, albeit of limited applications.

蒽醌似乎是无硫碱法制浆的最有效的催化剂，尽管应用还比较少。

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That kind of performance is unheard of in today's plug-free chargers, which tend to be powered by conventional alkaline or lithium ion batteries and often can only last for one or two charges before needing replacement or recharging on their own.

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