The design and Structure of nitrogen tetroxide concentration monitor are introduced.
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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Examples of fixatives are formaldehyde, osmium tetroxide, ethanol, and acetic acid.
像甲醛 、 锇酸 、 酒精及乙酸等都是常用的固定剂.
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Osmium tetroxide is an expensive reagent with great toxicity.
四氧化锇是一种贵而毒性大的试剂.
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