| 1. | New "elements" proliferated remarkably .
显著增生了许多新“元素”。 |
| 2. | In fact it requires at least n generators .
事实上，它至少要有n个元素。 |
| 3. | We call -a the additive inverse of a .
我们称-a为a的加性逆元素。 |
| 4. | Water consists of hydrogen and oxygen .
水由氢和氧二元素合成。 |
| 5. | We call o the additive identity .
我们称O为加性单位元素。 |
| 6. | Water is composed of the elements hydrogen and oxygen .
水是由氢、氧元素组成的。 |
| 7. | They warrant mention as possible guides .
它们作为指示元素的可能性是值得注意的。 |
| 8. | D is called the domain and its elements are places .
D称为域，而它的元素称为位。 |
| 9. | We now omit the prime on the matrix elements .
我们现在把各矩阵元素上的一撇略去。 |
| 10. | Polymorphism in elements is called allotropy .
把元素中的多晶现象称为同素异构性。 |
