| 1. | Angular momentum is an axial vector quantity .
角动量是一种轴矢量。 |
| 2. | We use boldface type for vectors .
我们用黑体形式表示矢量。 |
| 3. | The order of adding the vectors is unimportant .
矢量相加的次序是无关紧要的。 |
| 4. | An axial vector may itself enter into a vector product .
轴矢量自身可参与矢积。 |
| 5. | A vector is defined by a direction as well as a magnitude .
一个矢量要用大小和方向来表示。 |
| 6. | The divergence of a vector function is the scalar function .
矢量函数的散度是一个标量函数。 |
| 7. | It should be clear that vector addition is commutative .
可清楚地看到，矢量加法满足对易律。 |
| 8. | Isospin is a vector quantity .
同位旋是矢量。 |
| 9. | A couple consisting of only two vectors is called a simple couple .
仅由两个矢量组成的力偶叫作简单力偶。 |
| 10. | Vector differences may also be found by the method of rectangular resolution .
矢量差也可用正交分解求得。 |
