专业释义英英释义
PH indicator
- abstract: A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or basicity) of the solution can be determined visually. Hence a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model.
以上来源于: WordNet
双语例句
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A brown or metallic green dye, C20H 12o 7, used as a pH indicator and in dyeing textiles.
一种棕色或金属绿色染料，C20 H 12o 7，用作酸碱指示剂和用于给丝织物染色。
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It USES distilled water and alcohol to refine water soluble acid and alkali of sample and then test the extractive with PH indicator.
用蒸馏水或乙醇水溶液抽提试样中的水溶性酸或碱，然后用酸度计或指示剂对抽提物进行测定。
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Taking alcoholicity as the indicator, the effects of initial sugar content, initial pH, inoculum size and temperature on the fermentation of the wine were investigated.
以酒精度为指标，研究了初始糖度、初始酸度、接种量和发酵温度对凉薯果酒发酵的影响；
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