a gas which can be liquefied only at very low temperatures (such as oxygen, hydrogen, or air), and was formerly believed to be incapable of…
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| 单词 | θ71508 |
| 释义 | the world > matter > chemistry > chemical substances > named gases > [noun] > types (3) permanent gas1800 a gas which can be liquefied only at very low temperatures (such as oxygen, hydrogen, or air), and was formerly believed to be incapable of… carrier gas1887 a gas mixed with a volatile material so that it can be made to flow through an apparatus, e.g. as an inert vector in chromatographic analysis (cf… flue-gas1898 any mixture of gases from the flues of chemical or smelting factories. |
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