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单词 koniscope
释义

koniscopen.

/ˈkɒnɪskəʊp/
Etymology: < Greek κόνις dust + -scope comb. form.
An instrument for estimating the concentration of dust in the air by observing the depth of colour in a sample of the air when it is expanded into a tube with glass ends and containing moist paper to saturate it with water vapour.
ΘΚΠ
the world > matter > gas > air > [noun] > air in any specific place or at specific time > measurement of specific quality of air > instruments for measuring specific qualities
eudiometer1777
oximeter1803
ozonometer1851
ozonoscope1872
sepometer1876
koniscope1892
formenophone1894
konimeter1918
Tyndallmeter1919
1892 J. Aitken in Proc. Royal Soc. 51 435 This new instrument we intend to call a Koniscope. In its present form this instrument consists of an air-pump and a metal tube with glass ends.
1905 Westm. Gaz. 26 Aug. 13/1 Dr. Aitken has invented a very simple instrument for this purpose, which he calls the koniscope, or dust detective.
1925 W. N. Shaw & J. S. Owens Smoke Probl. Great Cities viii. 145 Condensation of water on the dust particles is utilised in Aitken's..koniscope; a fog is produced and compared with a standard.
This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2018).
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n.1892
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更新时间:2024/9/24 9:21:57