经过文库检验，以邻苯二酚为显色指示剂从文库中筛选到阳性转化子。
After gene library tested, we screened positive transformants using catechol as color indicator.
本发明还可加入酚酞或酚酞类酸碱指示剂作显色指示。
Phenolphthalein or indicator of such a kind is used as colour indicator.
对盐酸质量分析中出现的酸度低、酸度分析指示剂不显色等问题进行了讨论。
Such problems are discussed that low-acidity emerges in the quality analysis of hydrochloric acid and the chromogenic reaction of acidic-analysis indicator doesn′t work.
对盐酸质量分析中出现的酸度低、酸度分析指示剂不显色等问题进行了讨论。
Such problems are discussed that low-acidity emerges in the quality analysis of hydrochloric acid and the chromogenic reaction of acidic-analysis indicator doesn′t work.
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