名词 vector:

1. a variable quantity that can be resolved into components

2. a straight line segment whose length is magnitude and whose orientation in space is direction

3. any agent (person or animal or microorganism) that carries and transmits a disease

4. (genetics) a virus or other agent that is used to deliver DNA to a cell

vectorn.向量；矢量；带菌者vt.(无线电)导引vector pGEX载体pGEXvector tool向量工具vectorlysern.矢量分析器vector jump向量转移vector wave矢量波vector gage定向测雨器vector area矢面积vector text向量文本vector arms载体臂vector code向量化程序, 向量化代码

1. Neither of these vectors intrudes on a new user.
   这些向量都没有强加给新用户，他甚至没有注意到它们的存在。
2. This rule is deduced using the dot product of vectors.
   这条定理使用向量的数量积进行推导。