搜索 - 科创

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酸洗一块质地优良的大漠奇石，通常不用做任何处理就可以显出其美丽多彩的原型，但有很多还没有“长”好的石头，外表很“脏”，按照传统的做法，人们要通过刷、擦等方法对其进行打理，只在必要时，用一些稀释的盐酸进行局部清理

液压伺服对刀装置hydraulic stepless speed changes 液压无级变速hydraulic traching center test 液压跟踪中心架hydrochloric acid 盐酸

劣化口感：高氯烟叶燃烧时会产生盐酸味，刺激性强，且烟气粗糙，显著降低烟叶的香气质和香气量。形态指标异常：过量的氯会使烟叶厚而脆，叶缘上卷，严重时出现“烟氯病”（叶尖叶缘枯焦）。

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