| 单词 | gas hydrate |
| 释义 | > as lemmasgas hydrate gas hydrate n. [compare French hydrate de gaz (J. B. Van Mons in tr. H. Davy Élém. de philos. chimique (1813) I. 302)] Chemistry a clathrate compound formed by a gas and ice under conditions of high pressure and/or low temperature; (Geology) such a compound of methane and ice occurring in permafrost, marine sediments, etc. ΚΠ 1893 Brit. Med. Jrnl. 22 Apr. 866/2 The presence of a carbonic acid gas hydrate had long been concluded from the existence of another combination that is a derivative of it, namely, carbonic acid ethyl.] 1897 W. D. Bancroft Phase Rule v. 76 This is not the way Roozeboom writes it, but I have changed his nomenclature to make it agree with his usage in the papers on the gas hydrates. 1934 Industr. & Engin. Chem. 26 851/2 The formation of gas hydrates in natural gas pipe lines depends primarily upon the pressure, temperature, and composition of the gas–water vapor mixture. 1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) II. lxvi. 1581/2 The most recent concept..is the proposal that narcosis in general and by inert gases in particular is the result of a formation of gas hydrate ‘microcrystals’. 2002 Canad. Geographic May 24/1 Gas hydrates are concentrated in arctic permafrost and marine continental shelves around the globe. < as lemmas |
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