以下为句子列表：
英文: Examples of fixatives are formaldehyde, osmium tetroxide, ethanol, and acetic acid.
中文: 像甲醛、锇酸、酒精及乙酸等都是常用的固定剂。
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英文: Some key points are resolved with advanced software design conception and technology, and a nitrogen tetroxide concentration monitor with sound and light alarm is developed.
中文: 通过采用先进的软件设计思想与技术，解决了几个关键问题，成功地研制出了具有声光报警功能的高性能四氧化二氮毒气浓度监测仪。
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英文: The design and Structure of nitrogen tetroxide concentration monitor are introduced.
中文: 摘要介绍了四氧化二氮毒气浓度监测仪的设计思路和组成结构。
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英文: Thus, such phenomena as vermilion turning black, aging of red lead and the fading of arsenic can now be more essentially represented by the chemical reactions of cinnabar having its crystal lattice transformed, lead tetroxide turned into lead dioxide, and
中文: 于是，朱砂变黑，铅丹老化，石黄退色等现象，便可以用硫化汞转变了晶格，四氧化三铅变成了二氧化铅，硫化砷变成了氧化砷来更本质地加以表述了。
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