“plumb bob”的概念、定义、翻译、参考文献-科学参考

单词	plumb bob
释义	plumb bob [`plǝm ´bäb] ^ENGINEERING A weight suspended on a string to indicate the direction of the vertical.
随便看	lancet window Lanchester balancer Lanchester's rule Lanczos's method land land accretion land and sea breeze Landau damping Landau fluctuations Landau-Ginzburg theory Landau levels landblink land breeze land bridge land drainage land effect Landenian lander landesite landfall landfast ice landfill landform landform map land hemisphere

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