1. (especially of vectors) parallel but oppositely directed. 
   （尤其用于向量）平行的但却反向的。
2. A plane figure consisting of four points, no three of which are collinear, connected by straight lines. 
   四边形，四角形由四个角组成的平面图形，没有任何三个点共线，通过直线相连接
3. a vector that is the product of two other vectors. 
   两个向量相乘得到的向量。
4. An operator represented as a pair of vectors juxtaposed without multiplication. 
   并矢一种代表一对矢量的运算子，矢量并置但不增值
5. a real number (a scalar) that is the product of two vectors. 
   等于两个矢量乘积的实数（一个纯量）。

查看更多例句 相关情景会话

• 1. 共线向量
  共线点 collinear points...共线向量 collinear vectors...直射(变换)；共线 collineation
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