查询词典 unknown background

For the beam buckling problem, this paper presents the Barycentric Lagrange interpolation collocation method to get the differentiation Matrix of unknown function.

采用重心Lagrange插值多项式建立未知函数的微分矩阵，采用配点法将梁的控制方程表示为代数方程组。

Approximating unknown function by barycentric Lagrange interpolation which has advantages of higher precision and good numerical stability, the barycentric interpolation collocation method for analyzing deformation and buckling load of ring is presented.

采用数值稳定性好、计算精度高的重心Lagrange插值近似未知函数，提出数值分析圆环变形和临界载荷的重心插值配点法。

Differential matrices are obtained on the element in accordance with continuous intervals of discontinuous boundary value problem to divide the computing elements and approximating unknown function on the element in term of barycentric Lagrange interpolation.

按照间断边值问题的连续区间划分计算单元，在每一个单元上采用重心Lagrange插值近似未知函数，得到每一个单元上的微分矩阵。

Though it is still unknown if the space-age ball with have any effect of the performance of the game, it has been endorsed by famous players such as David Beckham, Xabi Alonso and Bastian Schweinsteiger.

虽然这个太空时代的球是否会影响球赛的表现目前仍是未知数，但一些明星球员像贝克汉、阿隆索和史汪斯泰格也都表示肯定。

The results suggest that Cochlear function may be affected in patients with OSAHS,the effect on brainstem is unknown.

OSAHS对听功能的影响主要在耳蜗，而对脑干部位的影响尚不明确。

Biological functions for bacterial NOSs are unknown, but have been presumed to be analogous to their role in mammals.

细菌NOSs的生物功能还是未知的，但是推测与其在哺乳动物中的同源物类似。

In the problem, there are m persons who are to be assigned to do n jobs, and the number of the persons who are assigned to do the jth job is bj, where bj is an unknown positive integer number to be calculated such that djbjej, dj and ej are known positive integer number (j=1,2,…,n) such that ∑nj=1bj=m and m≥n.

考虑一类较一般的最优指派问题：欲指派m个人做n项工作，要求每个人只做一项工作，第j项工作可以由bj个人共同去做，其中bj是待求未知数，满足dj≤bj≤ej(即ej，dj为第j项工作所需人数的上下限)及∑nj=1bj=m，dj，ej为已知常数，j=1，…，n。

We expect to be attracted to the unknown, but are most likely to fall for the known.

我们也许会被陌生人吸引，但是最有可能爱上认识的人。

The unknown can then be characterized by individual identification of its parts.

然后该未知化合物才能被它的特殊标识表征出来。

The above two parallel series of facts seem to be connected together by some common but unknown bond.

上面所讲的两个平行系列的事实，似乎由某种共同的而未知的锁链连结在一起。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。