“perfect vacuum”的概念、定义、翻译、参考文献-科学参考

单词	perfect vacuum
释义	perfect vacuum [`pǝr·fikt `vak·yǝm] See <<absolute vacuum>>
随便看	run diagram run documentation run down a coast rundown line rundown tank Runge-Kutta method Runge vector run in R unit runite run-length encoding run motor runnel runner runner box running accumulator running bird running block running bond running fit running fix running foot running gate running gear running ground

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