单词 | parallelogram |
释义 | parallelogram/ˌparəˈlɛləɡram /noun A four-sided plane rectilinear figure with opposite sides parallel.In the deformation, the parallelograms always remain parallelograms, because their opposite sides remain equal, but the angles change....
Phrasesparallelogram of forces OriginLate 16th century: from French parallélogramme, via late Latin from Greek parallēlogrammon, from parallēlos 'alongside another' + grammē 'line'. |
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