| 单词 | ozone paper |
| 释义 | > as lemmasozone paper ozone paper n. now rare a test paper impregnated with iodide ions which darkens in the presence of ozone. ΘΚΠ the world > matter > chemistry > chemical tests > indicators > [noun] > test papers litmus paper1803 turmeric paper1806 test-paper1827 georgina paper1843 ozone paper1861 ozone test paper1872 turmeric test-paper1880 lead-paper1890 tetra-paper1890 1861 Sci. Amer. 18 May 315 Papers of this kind (exhibiting ozone papers) are exposed to the atmosphere for certain fixed and definite lengths of time. 1934 Sci. Monthly Sept. 225/1 Determination of ozone by means of ‘ozone papers’. < as lemmas |
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