parallelogram
英 [,pærə'leləgræm]
美['pærə'lɛlə'græm]
- n. 平行四边形
词组搭配
parallelogram of forces
a parallelogram illustrating the theorem that if two forces acting at a point are represented in magnitude and direction by two sides of a parallelogram meeting at that point, their resultant is represented by the diagonal drawn from that point
力的平行四边形