| 1. | Tensor algebra is tied to coordinates .
张量代数则离不开坐标系。 |
| 2. | The real numbers are called the barycentric coordinates of x .
实数称为X重心坐标。 |
| 3. | The third coordinate is elevation .
第三项坐标是高程。 |
| 4. | We carry out a transformation to spherical polar coordinates .
我们变换成球极坐标。 |
| 5. | The hamiltonian is separable in normal coordinates .
哈密顿在筒子坐标中是可分离的。 |
| 6. | The equations are written in rectangular coordinates .
这些方程是在直角座标系中写出的。 |
| 7. | The coordinates x, y, and z are called the relative coordinates .
坐标x，y和z叫做相对坐标。 |
| 8. | This coordinate system is called the triad at the point .
这个坐标系叫做该点的三面形坐标系。 |
| 9. | Two perpendicular lines are chosen as the x and y coordinate axes .
选两条垂线作为x和y坐标轴。 |
| 10. | Life can be made simpler by a wise choice of coordinate axes .
坐标轴选取得好就可以使问题简化。 |
