Prove that if n is not a square then it has an even number of divisors . 证明:若n不是完全平方数,则n有偶数个因数。
prove that the number of division of n is(1)(鳎1) . 证明:n的因数的个数为(1)(1)。
The bubble size is a significant quantity which determines the conditions in the bed . 气泡尺寸是决定床内情况的一个关键因数。
A quality factor is somewhat like a craterpocked surface in a multidimensional space . 一个品质因数有点象多维空间中的一张布满洞穴的表面。
This is more feasible than altering the pendulous factor on a running compass . 对正在工作的罗盘来说,这样做比改变摆锤因数要更切合实际些。
Another measure of holdup is the k factor used by bankoff in connection with the bubble flow pattern in gas-liquid flow . 滞留现象的另一个度量是Bankoff在气-液流动的泡状流型中所采用的因数K。
For this quantity to be a meaningful measure of dispersion of the scale factors, the assumption of normality is again required . 该量是标度因数离散程度的一个有效的量度。就这个量来说,也要求正态性假定。
This will help to overcome problems of apparent bimodality caused by the presence of many below-detection-limit values in a data set . 这将有助于克服因数据组中有大量低于捡出限的数值而出双模态性的问题。
Why is a factor of safety provided for a design 为什么要在设计中设置安全因数?
It ' s a factorial , so you multiply each one by n 这是因数,所以你用n乘以每一个数