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力的平行四邊形
柯林斯高階英漢雙解學(xué)習(xí)詞典釋義
N-COUNT
平行四邊形
A parallelogram is a four-sided shape in which each side is parallel to the side opposite it.
英漢詞典釋義
n.
<數(shù)>平行四邊形
These are the opposite sides of the parallelogram.這是平行四邊形的對邊。
英英詞典釋義
Noun
1. a quadrilateral whose opposite sides are both parallel and equal in length