单词	center of mass
释义	center of mass noun phrase : the point in a body or system of bodies at which the whole mass may be considered as concentrated Word History First Known Use 1862, in the meaning defined above
随便看	nondenominational nondenominationalism nondenominationalisms nondepartmental nondependent nondependents nondepletable nondepleting nondeposition nondepositions nondepressed nonderivative nonderivatives nondescript nondescriptive nondescriptly nondescripts nondesert nondestructive nondestructively nondestructiveness nondestructivenesses nondetachable nondeteriorative nondeterministic

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