| 1. | Some quadratic equations have no real roots .
某些二次方程没有实数根。 |
| 2. | We say that the real number system is a continuum .
我们讲，实数系是一个连续集。 |
| 3. | The real numbers are called the barycentric coordinates of x .
实数称为X重心坐标。 |
| 4. | We assumed that e is a real number .
我们假定E是实数。 |
| 5. | The real part of the modulus is often called the storage modulus .
与应变同相的实数部分模量，通常称为储能模量。 |
| 6. | The question of the logical structure of the real number system was faced squarely .
实数系的逻辑结构问题被正视。 |
| 7. | Intervals can be either real or imaginary in the theory of relativity .
在相对论中，间隔可以是实数，也可以是虚数。 |
| 8. | There are infinitely many real numbers between any two distinct real numbers .
在任何两个实数之间都有无穷多个实数。 |
| 9. | The basic prerequisite for reading this book is a familiarity with the real number system .
阅读本书必须熟悉实数系。 |
| 10. | We see immediately that after substitution the real part of each term is 0 .
我们立即看出，在代换之后，每项的实数皆为零。 |
