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词汇
turmeric paper
释义
turmeric paper
n.
(名词)
Paper saturated with turmeric and used to detect the presence of alkalis, which turn the paper brown, or boric acid, which turns it red-brown.
姜黄试纸:一种用姜黄抽出液浸渍过的纸,用以测试碱性物质时试纸变成棕褐色,用来测试硼酸时,试纸变成红褐色
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更新时间:2024/12/23 10:44:29