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单词 oxyhelium
释义

> as lemmas

oxyhelium
oxyhelium n.
Brit. /ˌɒksɪˈhiːlɪəm/
,
U.S. /ˌɑksiˈhiliəm/
a mixture of oxygen and helium, used as a breathing mixture in deep-sea diving.
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the world > matter > gas > [noun] > specific gases > gas used in breathing apparatus
oxylithe1902
oxyhelium1966
tri-mix1976
1966 A. B. Cameron in P. Hepple Petroleum Supply & Demand 38 The use of oxyhelium equipment now enables them [sc. divers] to remain as deep as 525 ft for periods up to 30 minutes.
1969 Physics Bull. Feb. 51/2 There is a problem of speech communication between divers breathing oxy-helium and the men on the surface.
1988 Financial Times (Nexis) 22 Dec. 14 Oxyhelium, which the French refer to as Heliox, contains helium as a dilutant replacing nitrogen.
extracted from oxy-comb. form2
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