
vector
词源
源自拉丁语 'vector'(携带者),来自 'vehere'(携带、运输)。17世纪进入英语,最初用于天文学,后扩展至数学和生物学领域。
noun
❶ 数学或物理学中的向量,指既有大小又有方向的量,常用于描述力、速度等物理量。
“The velocity of the car is represented by a vector.”
(汽车的速度用一个向量表示。)
“Force is a vector quantity because it has both magnitude and direction.”
(力是向量量,因为它既有大小又有方向。)
❶ 生物学中指携带病原体(如病毒或细菌)并将疾病传播给其他生物的媒介,如蚊子或蜱虫。
“Mosquitoes are vectors for diseases like malaria and dengue.”
(蚊子是疟疾和登革热等疾病的传播媒介。)
“Ticks can act as vectors for Lyme disease.”
(蜱虫可以作为莱姆病的传播媒介。)
verb
❶ 引导或定向某物(如飞机或导弹)沿特定路径移动。
“The missile was vectored towards its target.”
(导弹被引导向目标。)
“Air traffic control vectored the plane to a safe landing.”
(空中交通管制引导飞机安全着陆。)
常见短语
vector graphics — 计算机图形学中基于数学公式而非像素的图像,可以无限缩放而不失真。
“Logos are often created as vector graphics for versatility.”
(标志通常创建为矢量图形以实现多功能性。)
vector space — 数学中向量的集合,满足特定运算规则,是线性代数的基础概念。
“Understanding vector spaces is fundamental to linear algebra.”
(理解向量空间是线性代数的基础。)