| 1. | The thrill of the unknown could not be recaptured .
未知数引起的激动情绪是不可能再有了。 |
| 2. | It 's still uncertain whether the college spring sports will be held this year .
学院今年的春运会是否开还是个未知数。 |
| 3. | The unknowns in the above equation are referred to the local numbering system .
上述方程中，未知数是属于局部编号系统的。 |
| 4. | The unknowns in the equations are the values of the dependent variables at the node .
方程中的未知数是结点上因变量的值。 |
| 5. | Any flight test and wind tunnel correlation always suffers from a great number of unknowns .
在对飞行试验与风洞试验进行比较时总有大量的未知数。 |
| 6. | Since the function is cubic, four nodal quantities are required to define the distribution on a side .
因为函数是三次的，所以需要4个结点未知数确定每边的分布。 |
| 7. | We could attempt to get around this difficulty by initially assigning the arbitrary value to another of the unknowns rather than to xn.
开头对另一个而不是Xn的未知数指定为任意常数，能试图避免这个困难。 |
| 8. | The reader of these pages in future years should realise how dense and baffling is the veil of the unknown .
在未来的岁月里，读者在读到这些章节时，可能感到那掩蔽着未知数的帷幕是多么严密和多么令人困惑。 |
| 9. | If we wish to check the structure for a significant number of hypotheses， the use of a small computer facilitates the extensive summation processes .
如果要计算未知数很多的结构，使用小型计算机能使大量求和过程更简便。 |
| 10. | A : the advertisement is still a wild card
这个广告的成功与否还是个未知数。 |
