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单词 hodograph
释义 ho·do·graph
\ˈhädəˌgraf, ˈhōd-, -rȧf\ noun
Etymology: Greek hodos path + English -graph — more at cede
: a path described by the extremity of a vector drawn from a fixed origin and representing the linear velocity of a moving point
ho·do·graph·ic \| ̷ ̷ ̷ ̷|grafik\ adjective
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