有向线段

directed line segment

有向线段

directed line 有向直线 | directed line segment 有向线段 | directed number 有向数

directed line segment

有向线段Btu中国学习动力网

directed line 有向直线Btu中国学习动力网 | directed line segment 有向线段Btu中国学习动力网 | directed number 有向数Btu中国学习动力网

directed line

有向直线

directed angle 有向角 | directed line 有向直线 | directed line segment 有向线段

directed line

有向元

directed group 有向群 | directed line 有向元 | directed line segment 有向线段

directed line

有向直线Btu中国学习动力网

directed angle 有向角Btu中国学习动力网 | directed line 有向直线Btu中国学习动力网 | directed line segment 有向线段Btu中国学习动力网

directed path

有向通路

directed line segment 有向线段 | directed path 有向通路 | directed quantity 有向量

directed number

有向数

directed line segment 有向线段 | directed number 有向数 | direction 方向; 方位

directed number

有符号数

有向线段 directed line segment | 有符号数 directed number | 导序集{注:这是预序集;且任两元均有共同后元者} directed set

directed number

有向数Btu中国学习动力网

directed line segment 有向线段Btu中国学习动力网 | directed number 有向数Btu中国学习动力网 | direction 方向; 方位Btu中国学习动力网

fixed vector

固定矢量

因此,力矢量是固定作用点的矢量,也称为固定矢量(fixed vector)或约束矢量. 力矢量可以用一条有向线段来表示:线段的长度按一定比例代表力的大小,线段的方位和箭头表示力的方向,线段的起点或终点表示力的作用点. 过力的作用点沿力的方向引出的直线,

NHL：abbr. non-hodgkin lymphoma; 淋巴瘤

complete ordered field：完备有序体

完全的空间n点形 complete n-point in space | 完备有序体 complete ordered field | 完全正(直)交系 complete orthogonal system