a box containing ozone papers, used to indicate the presence and concentration of ozone in the air.
| 单词 | θ69031 |
| 释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > oxygen > [noun] > ozones > measurement of (2) ozone-box1860 a box containing ozone papers, used to indicate the presence and concentration of ozone in the air. ozonoscope1872 An instrument or device for detecting ozone. |
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