“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	cabretta cab signal cacao cacao butter Caccioppoli-Banach principle cache cachexia cacimbo cacodyl cacodylate cacodylic acid cacomistle caconym cacotheline cacoxenite Cactaceae cactus cactus alkaloid CAD cadalene cadang-cadang cadastral survey cadaver cadaverine CADD

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