The conditions of simultaneous diagonalization of two matrices are given.摘要给出两个矩阵同时合同对角化与同时相似对角化的一些条件.In this paper, we mainly discuss the diagonalization of a special kind of block circulant matrices.本文主要探讨了一类特殊的分块循环矩阵的...
多数难民在高山上露宿。Most of the refugees are camped high in the mountains.他俩都是无家可归的人，露宿在城市最古老的桥下。They are both down-and-outs, sleeping under the city's oldest bridge.这里有很多露宿街头的无家可归者.There are lots of waifs and strays living ...
We apologise for any embarrassment this may have caused.我们为因此可能带来的尴尬表示歉意。They do not have the courage to apologise for their actions.他们没有勇气为自己的行为道歉。Am I supposed to apologise for having high standards?你以为我会对有如此高的标准而抱歉 吗 ...
In this view they were sedulously abetted by their mother, aunts and other elderly female relatives.在这方面,他们得到了他们的母亲, 婶婶以及其它年长的女亲戚们孜孜不倦的怂恿.The clerk laid the two sheets of paper alongside and sedulously compared their con...
A hydrocarbon was known to be either an alkene or alkane.某碳氢化合物已知可能是烯烃或是烷烃.The hydrocarbon must be an alkene.这个碳氢化合物必定是烯烃.The betaine will collapse to the alkene only when these two functions are eclipsed.只有当这两个基团移至重迭位置时...
他拒绝让我使用他的牙刷.He has refused to let me use his toothbrush.我妹妹有两把牙刷.My sister has two toothbrushes.你带牙刷来了 吗 ?Have you brought your toothbrush with you?...