The mechanism was discussed in the proton acid catalytic reaction of furan phenol cyclization.

探讨了呋喃酚环合反应质子酸催化机理。

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The determination of pyridine adsorption of samples revealed that materials have a typic characterization of proton acid, and the proton acid centers increased with the increase of s content.

磺酸基很好地嵌入孔壁基质中，吡啶吸附测定显示了典型的质子酸特征，而且酸中心随硫含量增加而增多。

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The prodrug exposed to strong acid is protonated and undergoes a conformational change to its active form which is capable of inhibiting the proton pump.

前药的接触了强酸后被质子化，并且经过结构的改变成为真正能够抑制质子泵的活化形式。

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The main electrolytes used today are alkali, molten carbonate, phosphoric acid, proton exchange membrane and solid oxide.

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