查询词典 unknown

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。

The uncertainty is assumed to be unknown continuous function with norm-bounded restriction. The perturbation is sector-bounded.

系统的不确定性是范数有界的未知连续函数，外部干扰是扇形有界的。

It may be disagreeable and painful to him, perhaps, to see an unknown face at such a moment of sadness; besides, what can I say to him now, when at the mere sight of him my heart is throbbing and leaping into my mouth?

在这悲哀的时刻，一张陌生的面孔想必会使他感到厌恶和难受，而且现在，当我朝他望一眼就会感到心悸、口干舌燥的时候，我能够对他说些什么话！

It is entirely natural to be fearful of the unknown.

对未知感到恐惧完全是人类的自然反应。

The ginkgo contains the abundant unknown active thing --" anti-ageing and plain " to can make people to be in high spirits , promote longevity.

银杏含有丰富的未知活性物──"抗衰老素"故能使人精神焕发、延年益寿。

The great unknown, however, is the spending culture of NBA owners this summer in a bedraggled economy.

最大地未知数是，在动荡不安的经济大环境下， NBA 老板们今年夏天的"支出哲学"究竟几何？

For the road was cut many years ago---by Fanny Burney, by Aphra Behn, by Harriet Martineau, by Jane Austen, by George Eliot —many famous women, and many more unknown and forgotten, have been before me, making the path smooth, and regulating my steps.

道路已被开辟已久，在我之前的许多知名女性----范妮﹒伯尼，阿芙拉﹒贝思，哈丽雅特﹒马蒂诺，简﹒奥斯汀，乔治﹒艾略特，以及无数不详其名的或已被遗忘的，早已将道路铺平并指引着我前进的步伐。

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。