“dry vacuum pump”的概念、定义、翻译、参考文献-科学参考

单词	dry vacuum pump
释义	dry vacuum pump Encyclopedia 工学真空泵释 dry vacuum pump干式真空泵能在105（大气压）～10-2帕的压力范围内工作，在泵腔内不使用任何液体，排气口与大气相通，能直接向大气排气的泵。又称无油真空泵。
随便看	semiaxis semi-balanced lattice square semi-barium star semi-basic differential form semi-bilinear semi bilinear form semi-bilinear form semi-bilinear form; sesquilinear form semi-bilinear functional semi-bilinear mapping semi-bipartite graph semi bituminous coal semi-bituminous coal semi-bounded semi-bounded from above semi-bounded from below semi-boundedness semi-bounded operator semi-bounded transformation semibreadth semibreve semibridging carbonyl semibridging group semi-bright coal semicanonical equations

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