“vacuum heating”的概念、定义、翻译、参考文献-科学参考

单词	vacuum heating
释义	vacuum heating [`vak·yǝm `hēd·iŋ] ^{MECHANICAL ENGINEERING} A two-pipe steam heating system in which a vacuum pump is used to maintain a suction in the return piping, thus creating a positive return flow of air and condensate.
随便看	carbon-arc cutting carbon-arc lamp carbon-arc welding carbonate carbonate cycle carbonate mineral carbonate reservoir carbonate rock carbonate spring carbonation carbonatite carbon bit carbon black carbon brush carbon burning carbon burning rate carbon button carbon canister carbon cycle carbon-detonation supernova model carbon diamond carbon dioxide carbon dioxide absorption tube carbon dioxide fire extinguisher carbon dioxide gas laser

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