| 单词 | Sir James Dewar |
| 释义 | Sir James Dewar (once / 492472 pages) n WORD FAMILY Sir James Dewar USAGE EXAMPLESThus, liquid oxygen and liquid air have been shown by Sir James Dewar to be almost perfect non-conductors of electricity. Various, Encyclopaedia Britannica, 11th Edit...(2010) Thus methyl chloride, ethylene and oxygen are used in the cryogenic laboratory of Leiden, while Sir James Dewar has used air as the last term. Various, Encyclopaedia Britannica, 11th Edit...(2010) Sir James Dewar discovered the principle of the "Thermos flask" whilst he was working at the exceedingly difficult subject of the liquefaction of air. Windle, Bertram Coghill Alan, Sir, Science and Morals and Other Essays(2010) n Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923) Syn|Exp Dewar chemist a scientist who specializes in chemistry physicista scientist trained in physics |
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